231310000131 has 16 divisors (see below), whose sum is σ = 353584291584. Its totient is φ = 131760176544.

The previous prime is 231310000123. The next prime is 231310000153. The reversal of 231310000131 is 131000013132.

It is not a de Polignac number, because 231310000131 - 2³ = 231310000123 is a prime.

It is a super-2 number, since 2×231310000131² (a number of 24 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 231310000131.

It is not an unprimeable number, because it can be changed into a prime (231310008131) 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, 17366785 + ... + 17380098.

It is an arithmetic number, because the mean of its divisors is an integer number (22099018224).

Almost surely, 2^231310000131 is an apocalyptic number.

231310000131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

231310000131 is a deficient number, since it is larger than the sum of its proper divisors (122274291453).

231310000131 is a wasteful number, since it uses less digits than its factorization.

231310000131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34747210.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 231310000131 its reverse (131000013132), we get a palindrome (362310013263).

The spelling of 231310000131 in words is "two hundred thirty-one billion, three hundred ten million, one hundred thirty-one", and thus it is an aban number.