31312323323212 has 24 divisors (see below), whose sum is σ = 54935402034240. Its totient is φ = 15616540543440.

The previous prime is 31312323323161. The next prime is 31312323323227. The reversal of 31312323323212 is 21232332321313.

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, 3094438 + ... + 8497069.

It is an arithmetic number, because the mean of its divisors is an integer number (2288975084760).

Almost surely, 2^{31312323323212} is an apocalyptic number.

It is an amenable number.

31312323323212 is a deficient number, since it is larger than the sum of its proper divisors (23623078711028).

31312323323212 is a wasteful number, since it uses less digits than its factorization.

31312323323212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11593221 (or 11593219 counting only the distinct ones).

The product of its digits is 23328, while the sum is 31.

Adding to 31312323323212 its reverse (21232332321313), we get a palindrome (52544655644525).

The spelling of 31312323323212 in words is "thirty-one trillion, three hundred twelve billion, three hundred twenty-three million, three hundred twenty-three thousand, two hundred twelve".