31332211223312 has 20 divisors (see below), whose sum is σ = 60931832707980. Its totient is φ = 15607867298688.

The previous prime is 31332211223309. The next prime is 31332211223321. The reversal of 31332211223312 is 21332211223313.

It can be written as a sum of positive squares in 2 ways, for example, as 12888415921936 + 18443795301376 = 3590044^2 + 4294624^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3639890123 + ... + 3639898730.

It is an arithmetic number, because the mean of its divisors is an integer number (3046591635399).

Almost surely, 2^{31332211223312} is an apocalyptic number.

It is an amenable number.

31332211223312 is a deficient number, since it is larger than the sum of its proper divisors (29599621484668).

31332211223312 is a wasteful number, since it uses less digits than its factorization.

31332211223312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7279789130 (or 7279789124 counting only the distinct ones).

The product of its digits is 7776, while the sum is 29.

Adding to 31332211223312 its reverse (21332211223313), we get a palindrome (52664422446625).

Subtracting from 31332211223312 its reverse (21332211223313), we obtain a palindrome (9999999999999).

The spelling of 31332211223312 in words is "thirty-one trillion, three hundred thirty-two billion, two hundred eleven million, two hundred twenty-three thousand, three hundred twelve".