313113113220 has 24 divisors (see below), whose sum is σ = 876716717184. Its totient is φ = 83496830176.

The previous prime is 313113113207. The next prime is 313113113233. The reversal of 313113113220 is 22311311313.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (313113113207) and next prime (313113113233).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2609275884 + ... + 2609276003.

It is an arithmetic number, because the mean of its divisors is an integer number (36529863216).

Almost surely, 2^313113113220 is an apocalyptic number.

313113113220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

313113113220 is an abundant number, since it is smaller than the sum of its proper divisors (563603603964).

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

313113113220 is a wasteful number, since it uses less digits than its factorization.

313113113220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5218551899 (or 5218551897 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 313113113220 its reverse (22311311313), we get a palindrome (335424424533).

The spelling of 313113113220 in words is "three hundred thirteen billion, one hundred thirteen million, one hundred thirteen thousand, two hundred twenty".