313312331212 has 24 divisors (see below), whose sum is σ = 567807299136. Its totient is φ = 151169461968.

The previous prime is 313312331177. The next prime is 313312331219. The reversal of 313312331212 is 212133213313.

It is not an unprimeable number, because it can be changed into a prime (313312331219) 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, 10959118 + ... + 10987669.

It is an arithmetic number, because the mean of its divisors is an integer number (23658637464).

Almost surely, 2^313312331212 is an apocalyptic number.

It is an amenable number.

313312331212 is a deficient number, since it is larger than the sum of its proper divisors (254494967924).

313312331212 is a wasteful number, since it uses less digits than its factorization.

313312331212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21946917 (or 21946915 counting only the distinct ones).

The product of its digits is 1944, while the sum is 25.

Adding to 313312331212 its reverse (212133213313), we get a palindrome (525445544525).

The spelling of 313312331212 in words is "three hundred thirteen billion, three hundred twelve million, three hundred thirty-one thousand, two hundred twelve".