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12331121322 = 2313997158567
BaseRepresentation
bin10110111101111110…
…11111101010101010
31011211101011212102010
423132333133222222
5200223231340242
65355334420350
7614401542012
oct133677375252
934741155363
1012331121322
115258661a63
1224818016b6
13121693aac0
1484d9b2c42
154c287a89c
hex2defdfaaa

12331121322 has 32 divisors (see below), whose sum is σ = 26586145152. Its totient is φ = 3790361664.

The previous prime is 12331121321. The next prime is 12331121357. The reversal of 12331121322 is 22312113321.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (12331121321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1518 + ... + 157049.

It is an arithmetic number, because the mean of its divisors is an integer number (830817036).

Almost surely, 212331121322 is an apocalyptic number.

12331121322 is an abundant number, since it is smaller than the sum of its proper divisors (14255023830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12331121322 is a wasteful number, since it uses less digits than its factorization.

12331121322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159582.

The product of its digits is 432, while the sum is 21.

Adding to 12331121322 its reverse (22312113321), we get a palindrome (34643234643).

The spelling of 12331121322 in words is "twelve billion, three hundred thirty-one million, one hundred twenty-one thousand, three hundred twenty-two".

Divisors: 1 2 3 6 13 26 39 78 997 1994 2991 5982 12961 25922 38883 77766 158567 317134 475701 951402 2061371 4122742 6184113 12368226 158091299 316182598 474273897 948547794 2055186887 4110373774 6165560661 12331121322