131465032431091 has 2 divisors, whose sum is σ = 131465032431092. Its totient is φ = 131465032431090.

The previous prime is 131465032431079. The next prime is 131465032431157. The reversal of 131465032431091 is 190134230564131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131465032431091 is a prime.

It is not a weakly prime, because it can be changed into another prime (131465032431071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65732516215545 + 65732516215546.

It is an arithmetic number, because the mean of its divisors is an integer number (65732516215546).

Almost surely, 2^{131465032431091} is an apocalyptic number.

131465032431091 is a deficient number, since it is larger than the sum of its proper divisors (1).

131465032431091 is an equidigital number, since it uses as much as digits as its factorization.

131465032431091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 131465032431091 in words is "one hundred thirty-one trillion, four hundred sixty-five billion, thirty-two million, four hundred thirty-one thousand, ninety-one".