131167425931 has 4 divisors (see below), whose sum is σ = 133317711664. Its totient is φ = 129017140200.

The previous prime is 131167425911. The next prime is 131167425941. The reversal of 131167425931 is 139524761131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 139524761131 = 7 ⋅19932108733.

It is a cyclic number.

It is not a de Polignac number, because 131167425931 - 2¹³ = 131167417739 is a prime.

It is a super-2 number, since 2×131167425931² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131167425911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1075142775 + ... + 1075142896.

It is an arithmetic number, because the mean of its divisors is an integer number (33329427916).

Almost surely, 2^131167425931 is an apocalyptic number.

131167425931 is a deficient number, since it is larger than the sum of its proper divisors (2150285733).

131167425931 is an equidigital number, since it uses as much as digits as its factorization.

131167425931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150285732.

The product of its digits is 136080, while the sum is 43.

The spelling of 131167425931 in words is "one hundred thirty-one billion, one hundred sixty-seven million, four hundred twenty-five thousand, nine hundred thirty-one".