313321012 has 24 divisors (see below), whose sum is σ = 560105280. Its totient is φ = 153323520.

The previous prime is 313321007. The next prime is 313321013. The reversal of 313321012 is 210123313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313321013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35508 + ... + 43444.

It is an arithmetic number, because the mean of its divisors is an integer number (23337720).

Almost surely, 2^313321012 is an apocalyptic number.

It is an amenable number.

313321012 is a deficient number, since it is larger than the sum of its proper divisors (246784268).

313321012 is a wasteful number, since it uses less digits than its factorization.

313321012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8151 (or 8149 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 313321012 is about 17700.8760235193. The cubic root of 313321012 is about 679.1981696471.

Adding to 313321012 its reverse (210123313), we get a palindrome (523444325).

The spelling of 313321012 in words is "three hundred thirteen million, three hundred twenty-one thousand, twelve".