31323323312 has 20 divisors (see below), whose sum is σ = 60949413720. Its totient is φ = 15594442368.

The previous prime is 31323323303. The next prime is 31323323321. The reversal of 31323323312 is 21332332313.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31323323303) and next prime (31323323321).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4197362 + ... + 4204817.

It is an arithmetic number, because the mean of its divisors is an integer number (3047470686).

Almost surely, 2^31323323312 is an apocalyptic number.

It is an amenable number.

31323323312 is a deficient number, since it is larger than the sum of its proper divisors (29626090408).

31323323312 is a wasteful number, since it uses less digits than its factorization.

31323323312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8402420 (or 8402414 counting only the distinct ones).

The product of its digits is 5832, while the sum is 26.

Adding to 31323323312 its reverse (21332332313), we get a palindrome (52655655625).

Subtracting from 31323323312 its reverse (21332332313), we obtain a palindrome (9990990999).

The spelling of 31323323312 in words is "thirty-one billion, three hundred twenty-three million, three hundred twenty-three thousand, three hundred twelve".