131031525506 has 64 divisors (see below), whose sum is σ = 235237008384. Its totient is φ = 53566963200.

The previous prime is 131031525487. The next prime is 131031525511. The reversal of 131031525506 is 605525130131.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37254860 + ... + 37258376.

It is an arithmetic number, because the mean of its divisors is an integer number (3675578256).

Almost surely, 2^131031525506 is an apocalyptic number.

131031525506 is a deficient number, since it is larger than the sum of its proper divisors (104205482878).

131031525506 is a wasteful number, since it uses less digits than its factorization.

131031525506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4995.

The product of its (nonzero) digits is 13500, while the sum is 32.

Adding to 131031525506 its reverse (605525130131), we get a palindrome (736556655637).

The spelling of 131031525506 in words is "one hundred thirty-one billion, thirty-one million, five hundred twenty-five thousand, five hundred six".