131531544445051 has 16 divisors (see below), whose sum is σ = 142197464656800. Its totient is φ = 121240001829888.

The previous prime is 131531544445033. The next prime is 131531544445069. The reversal of 131531544445051 is 150544445135131.

It is an interprime number because it is at equal distance from previous prime (131531544445033) and next prime (131531544445069).

It is a cyclic number.

It is not a de Polignac number, because 131531544445051 - 2²⁹ = 131531007574139 is a prime.

It is a super-4 number, since 4×131531544445051⁴ (a number of 58 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131531544444992 and 131531544445010.

It is not an unprimeable number, because it can be changed into a prime (131531544245051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89956845 + ... + 91407313.

It is an arithmetic number, because the mean of its divisors is an integer number (8887341541050).

Almost surely, 2^{131531544445051} is an apocalyptic number.

131531544445051 is a deficient number, since it is larger than the sum of its proper divisors (10665920211749).

131531544445051 is a wasteful number, since it uses less digits than its factorization.

131531544445051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579518.

The product of its (nonzero) digits is 1440000, while the sum is 46.

The spelling of 131531544445051 in words is "one hundred thirty-one trillion, five hundred thirty-one billion, five hundred forty-four million, four hundred forty-five thousand, fifty-one".