31125373497 has 16 divisors (see below), whose sum is σ = 46216720000. Its totient is φ = 20702974032.

The previous prime is 31125373493. The next prime is 31125373523. The reversal of 31125373497 is 79437352113.

31125373497 is a `hidden beast` number, since 3 + 1 + 125 + 37 + 3 + 497 = 666.

It is not a de Polignac number, because 31125373497 - 2² = 31125373493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31125373493) 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, 1301122 + ... + 1324827.

It is an arithmetic number, because the mean of its divisors is an integer number (2888545000).

Almost surely, 2^31125373497 is an apocalyptic number.

It is an amenable number.

31125373497 is a deficient number, since it is larger than the sum of its proper divisors (15091346503).

31125373497 is a wasteful number, since it uses less digits than its factorization.

31125373497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2626397 (or 2626391 counting only the distinct ones).

The product of its digits is 476280, while the sum is 45.

The spelling of 31125373497 in words is "thirty-one billion, one hundred twenty-five million, three hundred seventy-three thousand, four hundred ninety-seven".