131031525473 has 2 divisors, whose sum is σ = 131031525474. Its totient is φ = 131031525472.

The previous prime is 131031525461. The next prime is 131031525487. The reversal of 131031525473 is 374525130131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94652829649 + 36378695824 = 307657^2 + 190732^2 .

It is a cyclic number.

It is not a de Polignac number, because 131031525473 - 2⁸ = 131031525217 is a prime.

It is not a weakly prime, because it can be changed into another prime (131031525433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65515762736 + 65515762737.

It is an arithmetic number, because the mean of its divisors is an integer number (65515762737).

Almost surely, 2^131031525473 is an apocalyptic number.

It is an amenable number.

131031525473 is a deficient number, since it is larger than the sum of its proper divisors (1).

131031525473 is an equidigital number, since it uses as much as digits as its factorization.

131031525473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 35.

The spelling of 131031525473 in words is "one hundred thirty-one billion, thirty-one million, five hundred twenty-five thousand, four hundred seventy-three".