313321312212 has 12 divisors (see below), whose sum is σ = 731083061856. Its totient is φ = 104440437400.

The previous prime is 313321312211. The next prime is 313321312231. The reversal of 313321312212 is 212213123313.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313321312211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13055054664 + ... + 13055054687.

It is an arithmetic number, because the mean of its divisors is an integer number (60923588488).

Almost surely, 2^313321312212 is an apocalyptic number.

It is an amenable number.

313321312212 is an abundant number, since it is smaller than the sum of its proper divisors (417761749644).

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

313321312212 is a wasteful number, since it uses less digits than its factorization.

313321312212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26110109358 (or 26110109356 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

Adding to 313321312212 its reverse (212213123313), we get a palindrome (525534435525).

The spelling of 313321312212 in words is "three hundred thirteen billion, three hundred twenty-one million, three hundred twelve thousand, two hundred twelve".