131123112231320 has 64 divisors (see below), whose sum is σ = 322896003091200. Its totient is φ = 47525818538880.

The previous prime is 131123112231311. The next prime is 131123112231347. The reversal of 131123112231320 is 23132211321131.

131123112231320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×131123112231320² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131123112231320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 485218460 + ... + 485488619.

It is an arithmetic number, because the mean of its divisors is an integer number (5045250048300).

Almost surely, 2^{131123112231320} is an apocalyptic number.

131123112231320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131123112231320 is an abundant number, since it is smaller than the sum of its proper divisors (191772890859880).

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

131123112231320 is a wasteful number, since it uses less digits than its factorization.

131123112231320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970707408 (or 970707404 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 131123112231320 its reverse (23132211321131), we get a palindrome (154255323552451).

The spelling of 131123112231320 in words is "one hundred thirty-one trillion, one hundred twenty-three billion, one hundred twelve million, two hundred thirty-one thousand, three hundred twenty".