313212812 has 12 divisors (see below), whose sum is σ = 597951816. Its totient is φ = 142369440.

The previous prime is 313212793. The next prime is 313212833. The reversal of 313212812 is 218212313.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3559193 + ... + 3559280.

It is an arithmetic number, because the mean of its divisors is an integer number (49829318).

Almost surely, 2^313212812 is an apocalyptic number.

It is an amenable number.

313212812 is a deficient number, since it is larger than the sum of its proper divisors (284739004).

313212812 is a wasteful number, since it uses less digits than its factorization.

313212812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7118488 (or 7118486 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 313212812 is about 17697.8194137018. The cubic root of 313212812 is about 679.1199775266.

The spelling of 313212812 in words is "three hundred thirteen million, two hundred twelve thousand, eight hundred twelve".