313003123212 has 48 divisors (see below), whose sum is σ = 820717228800. Its totient is φ = 92121319488.

The previous prime is 313003123211. The next prime is 313003123231. The reversal of 313003123212 is 212321300313.

It is not an unprimeable number, because it can be changed into a prime (313003123211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43614462 + ... + 43621637.

It is an arithmetic number, because the mean of its divisors is an integer number (17098275600).

Almost surely, 2^313003123212 is an apocalyptic number.

It is an amenable number.

313003123212 is an abundant number, since it is smaller than the sum of its proper divisors (507714105588).

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

313003123212 is a wasteful number, since it uses less digits than its factorization.

313003123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87236142 (or 87236140 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 313003123212 its reverse (212321300313), we get a palindrome (525324423525).

The spelling of 313003123212 in words is "three hundred thirteen billion, three million, one hundred twenty-three thousand, two hundred twelve".