131045251323997 has 16 divisors (see below), whose sum is σ = 138864750171840. Its totient is φ = 123452079633792.

The previous prime is 131045251323991. The next prime is 131045251324073. The reversal of 131045251323997 is 799323152540131.

It is a cyclic number.

It is not a de Polignac number, because 131045251323997 - 2²⁷ = 131045117106269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131045251323991) 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, 54908623 + ... + 57245500.

It is an arithmetic number, because the mean of its divisors is an integer number (8679046885740).

Almost surely, 2^{131045251323997} is an apocalyptic number.

It is an amenable number.

131045251323997 is a deficient number, since it is larger than the sum of its proper divisors (7819498847843).

131045251323997 is a wasteful number, since it uses less digits than its factorization.

131045251323997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112155132.

The product of its (nonzero) digits is 6123600, while the sum is 55.

The spelling of 131045251323997 in words is "one hundred thirty-one trillion, forty-five billion, two hundred fifty-one million, three hundred twenty-three thousand, nine hundred ninety-seven".