131000232320 has 64 divisors (see below), whose sum is σ = 313321184640. Its totient is φ = 52375203840.

The previous prime is 131000232301. The next prime is 131000232401. The reversal of 131000232320 is 23232000131.

131000232320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×131000232320² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1330385 + ... + 1425455.

It is an arithmetic number, because the mean of its divisors is an integer number (4895643510).

Almost surely, 2^131000232320 is an apocalyptic number.

131000232320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131000232320 is an abundant number, since it is smaller than the sum of its proper divisors (182320952320).

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

131000232320 is an equidigital number, since it uses as much as digits as its factorization.

131000232320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97243 (or 97231 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 131000232320 its reverse (23232000131), we get a palindrome (154232232451).

The spelling of 131000232320 in words is "one hundred thirty-one billion, two hundred thirty-two thousand, three hundred twenty".