23320311312 has 20 divisors (see below), whose sum is σ = 60244137680. Its totient is φ = 7773437088.

The previous prime is 23320311307. The next prime is 23320311347. The reversal of 23320311312 is 21311302332.

It is a super-2 number, since 2×23320311312² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242919862 + ... + 242919957.

It is an arithmetic number, because the mean of its divisors is an integer number (3012206884).

Almost surely, 2^23320311312 is an apocalyptic number.

It is an amenable number.

23320311312 is an abundant number, since it is smaller than the sum of its proper divisors (36923826368).

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

23320311312 is a wasteful number, since it uses less digits than its factorization.

23320311312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485839830 (or 485839824 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 23320311312 its reverse (21311302332), we get a palindrome (44631613644).

The spelling of 23320311312 in words is "twenty-three billion, three hundred twenty million, three hundred eleven thousand, three hundred twelve".