31172230925 has 12 divisors (see below), whose sum is σ = 42167527296. Its totient is φ = 22670713200.

The previous prime is 31172230907. The next prime is 31172230933. The reversal of 31172230925 is 52903227113.

It is not a de Polignac number, because 31172230925 - 2⁶ = 31172230861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56676509 + ... + 56677058.

It is an arithmetic number, because the mean of its divisors is an integer number (3513960608).

Almost surely, 2^31172230925 is an apocalyptic number.

It is an amenable number.

31172230925 is a deficient number, since it is larger than the sum of its proper divisors (10995296371).

31172230925 is a wasteful number, since it uses less digits than its factorization.

31172230925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113353588 (or 113353583 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The spelling of 31172230925 in words is "thirty-one billion, one hundred seventy-two million, two hundred thirty thousand, nine hundred twenty-five".