31321333312 has 28 divisors (see below), whose sum is σ = 62293628016. Its totient is φ = 15625301120.

The previous prime is 31321333243. The next prime is 31321333367. The reversal of 31321333312 is 21333312313.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524014 + ... + 580717.

Almost surely, 2^31321333312 is an apocalyptic number.

31321333312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31321333312 is a deficient number, since it is larger than the sum of its proper divisors (30972294704).

31321333312 is a wasteful number, since it uses less digits than its factorization.

31321333312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105186 (or 1105176 counting only the distinct ones).

The product of its digits is 2916, while the sum is 25.

Adding to 31321333312 its reverse (21333312313), we get a palindrome (52654645625).

The spelling of 31321333312 in words is "thirty-one billion, three hundred twenty-one million, three hundred thirty-three thousand, three hundred twelve".