313133122220 has 12 divisors (see below), whose sum is σ = 657579556704. Its totient is φ = 125253248880.

The previous prime is 313133122207. The next prime is 313133122223. The reversal of 313133122220 is 22221331313.

It is not an unprimeable number, because it can be changed into a prime (313133122223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7828328036 + ... + 7828328075.

It is an arithmetic number, because the mean of its divisors is an integer number (54798296392).

Almost surely, 2^313133122220 is an apocalyptic number.

It is an amenable number.

313133122220 is an abundant number, since it is smaller than the sum of its proper divisors (344446434484).

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

313133122220 is a wasteful number, since it uses less digits than its factorization.

313133122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15656656120 (or 15656656118 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 313133122220 its reverse (22221331313), we get a palindrome (335354453533).

The spelling of 313133122220 in words is "three hundred thirteen billion, one hundred thirty-three million, one hundred twenty-two thousand, two hundred twenty".