31325852312 has 32 divisors (see below), whose sum is σ = 60001387200. Its totient is φ = 15325657344.

The previous prime is 31325852303. The next prime is 31325852323. The reversal of 31325852312 is 21325852313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1846364 + ... + 1863252.

It is an arithmetic number, because the mean of its divisors is an integer number (1875043350).

Almost surely, 2^31325852312 is an apocalyptic number.

It is an amenable number.

31325852312 is a deficient number, since it is larger than the sum of its proper divisors (28675534888).

31325852312 is a wasteful number, since it uses less digits than its factorization.

31325852312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21875 (or 21871 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

Subtracting from 31325852312 its reverse (21325852313), we obtain a palindrome (9999999999).

The spelling of 31325852312 in words is "thirty-one billion, three hundred twenty-five million, eight hundred fifty-two thousand, three hundred twelve".