31310132232 has 16 divisors (see below), whose sum is σ = 78275330640. Its totient is φ = 10436710736.

The previous prime is 31310132149. The next prime is 31310132237. The reversal of 31310132232 is 23223101313.

31310132232 is nontrivially palindromic in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 31310132199 and 31310132208.

It is not an unprimeable number, because it can be changed into a prime (31310132237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652294398 + ... + 652294445.

It is an arithmetic number, because the mean of its divisors is an integer number (4892208165).

Almost surely, 2^31310132232 is an apocalyptic number.

It is an amenable number.

31310132232 is an abundant number, since it is smaller than the sum of its proper divisors (46965198408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31310132232 is a wasteful number, since it uses less digits than its factorization.

31310132232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304588852 (or 1304588848 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31310132232 its reverse (23223101313), we get a palindrome (54533233545).

The spelling of 31310132232 in words is "thirty-one billion, three hundred ten million, one hundred thirty-two thousand, two hundred thirty-two".