131403376731 has 32 divisors (see below), whose sum is σ = 192426587136. Its totient is φ = 79099488000.

The previous prime is 131403376723. The next prime is 131403376751. The reversal of 131403376731 is 137673304131.

It is not a de Polignac number, because 131403376731 - 2³ = 131403376723 is a prime.

It is a super-2 number, since 2×131403376731² (a number of 23 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 131403376731.

It is not an unprimeable number, because it can be changed into a prime (131403376751) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23005966 + ... + 23011676.

It is an arithmetic number, because the mean of its divisors is an integer number (6013330848).

Almost surely, 2^131403376731 is an apocalyptic number.

131403376731 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131403376731 is a deficient number, since it is larger than the sum of its proper divisors (61023210405).

131403376731 is a wasteful number, since it uses less digits than its factorization.

131403376731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10323.

The product of its (nonzero) digits is 95256, while the sum is 39.

The spelling of 131403376731 in words is "one hundred thirty-one billion, four hundred three million, three hundred seventy-six thousand, seven hundred thirty-one".