It Almost Makes You Wonder "Why Recite Anything Else?"

There is merit in memorizing Quran, quite a bit actually. It is the only method (I know of) that will allow you to actually move up in heaven once you are already there.

Narrated Abdullah ibn Amr ibn al-'As: The Apostle of Allah (peace_be_upon_him) said: One who was devoted to the Qur'an will be told to recite, ascend and recite carefully as he recited carefully when he was in the world, for he will reach his abode when he comes to the last verse he recites. (Book #8, Hadith#1459)

So the more you know the higher you go.

Now, the Hadith says verses, which could be taken to mean either Surats or Ayats, but some are longer than others so I wonder how that factors in... at any rate, with a bit of math:

DISCLAIMER: THIS IS MY OWN MATH AND HAS NO BASIS IN HADITH OR QURAN.

• There are 18248 words in the Quran (http://www.searchtruth.com/showWords.php?translator=1), and 7 heavens. That gives 2607 words per level.
• There are 114 Surah's in the Quran, so: 17 surahs per level.
• There are 6349 ayat's in the Quran (http://en.wikipedia.org/wiki/Ayah) (yes, wikipedia. :( ) so: 907 ayat per level.
• And actually, 113 of those are just "Bismillahi Rahmani Rahim" so: 891 ayat's per level.

More benefits (like Quranic intercession) found at: http://www.themodernreligion.com/basic/quran/quran-benefits.html

But let it be known that some Surat's are better than others. Surat Al-Ikhlas, for example, is worth 1/3 of the Quran:

Narrated Abu Said Al-Khudri: The Prophet said to his companions, "Is it difficult for any of you to recite one third of the Qur'an in one night?" This suggestion was difficult for them so they said, "Who among us has the power to do so, O Allah's Apostle?" Allah Apostle replied: " Allah (the) One, the Self-Sufficient Master Whom all creatures need.' (surat Al-ikhlas 112.1--to the End) is equal to one third of the Qur'an." (Book #61, Hadith #534)

The two really worth mentioning are #99 (Al Zalzalah) and #100 (Al-Adiyat) as each one is worth half of the Quran:

The Prophet (sal Allau alaihi wa sallam) said, "Whoever recites Aadiyat, his reward equals one half of the Qur'an." [Hakim and Tirmidhi]

Abdullah Ibn Abbas (radi Allahu anhu) reported that the Prophet (sal Allahu alaihi wa sallam) said, "Whoever recites Surah Zalzalah (99) will get the reward of reciting half the Qur'an." [Tirmidhi]

And since it's sunnah to do Quranic recitation in 2 of the rukaa's of the daily prayers, you could have the reward of reciting the entire Quran five times (or more ;) ) every day for the rest of your life!! Then you'd just need to figure out how to work reciting the rest of the Quran into your day....