23131210111320 has 128 divisors (see below), whose sum is σ = 70432049571840. Its totient is φ = 6076025809920.

The previous prime is 23131210111301. The next prime is 23131210111351. The reversal of 23131210111320 is 2311101213132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 344022105 + ... + 344089335.

It is an arithmetic number, because the mean of its divisors is an integer number (550250387280).

Almost surely, 2^{23131210111320} is an apocalyptic number.

23131210111320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23131210111320 is an abundant number, since it is smaller than the sum of its proper divisors (47300839460520).

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

23131210111320 is a wasteful number, since it uses less digits than its factorization.

23131210111320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110105 (or 110101 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 23131210111320 its reverse (2311101213132), we get a palindrome (25442311324452).

The spelling of 23131210111320 in words is "twenty-three trillion, one hundred thirty-one billion, two hundred ten million, one hundred eleven thousand, three hundred twenty".