131334958020 has 96 divisors (see below), whose sum is σ = 431630615808. Its totient is φ = 29208079872.

The previous prime is 131334957977. The next prime is 131334958031. The reversal of 131334958020 is 20859433131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 131334958020.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4210167 + ... + 4241246.

It is an arithmetic number, because the mean of its divisors is an integer number (4496152248).

Almost surely, 2^131334958020 is an apocalyptic number.

131334958020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131334958020 is an abundant number, since it is smaller than the sum of its proper divisors (300295657788).

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

131334958020 is a wasteful number, since it uses less digits than its factorization.

131334958020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8451469 (or 8451467 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 131334958020 in words is "one hundred thirty-one billion, three hundred thirty-four million, nine hundred fifty-eight thousand, twenty".