313113120212 has 24 divisors (see below), whose sum is σ = 580197568104. Its totient is φ = 147342938112.

The previous prime is 313113120209. The next prime is 313113120241. The reversal of 313113120212 is 212021311313.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 74330388496 + 238782731716 = 272636^2 + 488654^2 .

It is a congruent number.

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, 3817538 + ... + 3898694.

It is an arithmetic number, because the mean of its divisors is an integer number (24174898671).

Almost surely, 2^313113120212 is an apocalyptic number.

It is an amenable number.

313113120212 is a deficient number, since it is larger than the sum of its proper divisors (267084447892).

313113120212 is a wasteful number, since it uses less digits than its factorization.

313113120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137915 (or 137913 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 313113120212 its reverse (212021311313), we get a palindrome (525134431525).

The spelling of 313113120212 in words is "three hundred thirteen billion, one hundred thirteen million, one hundred twenty thousand, two hundred twelve".