313122012 has 48 divisors (see below), whose sum is σ = 835871232. Its totient is φ = 89369280.

The previous prime is 313121987. The next prime is 313122059. The reversal of 313122012 is 210221313.

It is a junction number, because it is equal to n+sod(n) for n = 313121982 and 313122000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134337 + ... + 136647.

It is an arithmetic number, because the mean of its divisors is an integer number (17413984).

Almost surely, 2^313122012 is an apocalyptic number.

It is an amenable number.

313122012 is an abundant number, since it is smaller than the sum of its proper divisors (522749220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313122012 is a wasteful number, since it uses less digits than its factorization.

313122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3938 (or 3936 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 313122012 is about 17695.2539399693. The cubic root of 313122012 is about 679.0543458417.

Adding to 313122012 its reverse (210221313), we get a palindrome (523343325).

The spelling of 313122012 in words is "three hundred thirteen million, one hundred twenty-two thousand, twelve".