131323231304 has 48 divisors (see below), whose sum is σ = 260218511820. Its totient is φ = 62122959360.

The previous prime is 131323231297. The next prime is 131323231327. The reversal of 131323231304 is 403132323131.

It can be written as a sum of positive squares in 2 ways, for example, as 120235562500 + 11087668804 = 346750^2 + 105298^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2167892 + ... + 2227644.

Almost surely, 2^131323231304 is an apocalyptic number.

It is an amenable number.

131323231304 is a deficient number, since it is larger than the sum of its proper divisors (128895280516).

131323231304 is a wasteful number, since it uses less digits than its factorization.

131323231304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60558 (or 60535 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 131323231304 its reverse (403132323131), we get a palindrome (534455554435).

The spelling of 131323231304 in words is "one hundred thirty-one billion, three hundred twenty-three million, two hundred thirty-one thousand, three hundred four".