131318313400 has 48 divisors (see below), whose sum is σ = 306503195040. Its totient is φ = 52322918400.

The previous prime is 131318313391. The next prime is 131318313403. The reversal of 131318313400 is 4313813131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131318313403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1226016 + ... + 1328815.

It is an arithmetic number, because the mean of its divisors is an integer number (6385483230).

Almost surely, 2^131318313400 is an apocalyptic number.

131318313400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131318313400 is an abundant number, since it is smaller than the sum of its proper divisors (175184881640).

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

131318313400 is a wasteful number, since it uses less digits than its factorization.

131318313400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555104 (or 2555095 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 131318313400 in words is "one hundred thirty-one billion, three hundred eighteen million, three hundred thirteen thousand, four hundred".