313012022220 has 96 divisors (see below), whose sum is σ = 994534732800. Its totient is φ = 81693911232.

The previous prime is 313012022207. The next prime is 313012022227. The reversal of 313012022220 is 22220210313.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 313012022193 and 313012022202.

It is not an unprimeable number, because it can be changed into a prime (313012022227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6141130 + ... + 6191889.

It is an arithmetic number, because the mean of its divisors is an integer number (10359736800).

Almost surely, 2^313012022220 is an apocalyptic number.

313012022220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

313012022220 is an abundant number, since it is smaller than the sum of its proper divisors (681522710580).

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

313012022220 is a wasteful number, since it uses less digits than its factorization.

313012022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12333084 (or 12333076 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 313012022220 its reverse (22220210313), we get a palindrome (335232232533).

The spelling of 313012022220 in words is "three hundred thirteen billion, twelve million, twenty-two thousand, two hundred twenty".