23131255525120 has 36 divisors (see below), whose sum is σ = 55406585503080. Its totient is φ = 9252502209536.

The previous prime is 23131255525117. The next prime is 23131255525127. The reversal of 23131255525120 is 2152555213132.

It is a self number, because there is not a number n which added to its sum of digits gives 23131255525120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131255525127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9035645410 + ... + 9035647969.

It is an arithmetic number, because the mean of its divisors is an integer number (1539071819530).

Almost surely, 2^{23131255525120} is an apocalyptic number.

23131255525120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23131255525120 is an abundant number, since it is smaller than the sum of its proper divisors (32275329977960).

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

23131255525120 is an equidigital number, since it uses as much as digits as its factorization.

23131255525120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18071293400 (or 18071293386 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 37.

The spelling of 23131255525120 in words is "twenty-three trillion, one hundred thirty-one billion, two hundred fifty-five million, five hundred twenty-five thousand, one hundred twenty".