23131120013304 has 64 divisors (see below), whose sum is σ = 57993231722400. Its totient is φ = 7688331423744.

The previous prime is 23131120013303. The next prime is 23131120013311. The reversal of 23131120013304 is 40331002113132.

It is a super-2 number, since 2×23131120013304² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131120013303) 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, 23237794 + ... + 24212750.

Almost surely, 2^{23131120013304} is an apocalyptic number.

23131120013304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23131120013304 is an abundant number, since it is smaller than the sum of its proper divisors (34862111709096).

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

23131120013304 is a wasteful number, since it uses less digits than its factorization.

23131120013304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977792 (or 977788 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 23131120013304 its reverse (40331002113132), we get a palindrome (63462122126436).

The spelling of 23131120013304 in words is "twenty-three trillion, one hundred thirty-one billion, one hundred twenty million, thirteen thousand, three hundred four".