131812311504 has 40 divisors (see below), whose sum is σ = 340642955392. Its totient is φ = 43920944640.

The previous prime is 131812311497. The next prime is 131812311523. The reversal of 131812311504 is 405113218131.

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, 385849 + ... + 642264.

Almost surely, 2^131812311504 is an apocalyptic number.

It is an amenable number.

131812311504 is an abundant number, since it is smaller than the sum of its proper divisors (208830643888).

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

131812311504 is a wasteful number, since it uses less digits than its factorization.

131812311504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030795 (or 1030789 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

Adding to 131812311504 its reverse (405113218131), we get a palindrome (536925529635).

The spelling of 131812311504 in words is "one hundred thirty-one billion, eight hundred twelve million, three hundred eleven thousand, five hundred four".