313111302320 has 20 divisors (see below), whose sum is σ = 727983778080. Its totient is φ = 125244520896.

The previous prime is 313111302319. The next prime is 313111302323. The reversal of 313111302320 is 23203111313.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 313111302292 and 313111302301.

It is not an unprimeable number, because it can be changed into a prime (313111302323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1956945560 + ... + 1956945719.

It is an arithmetic number, because the mean of its divisors is an integer number (36399188904).

Almost surely, 2^313111302320 is an apocalyptic number.

It is an amenable number.

313111302320 is an abundant number, since it is smaller than the sum of its proper divisors (414872475760).

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

313111302320 is a wasteful number, since it uses less digits than its factorization.

313111302320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3913891292 (or 3913891286 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 313111302320 its reverse (23203111313), we get a palindrome (336314413633).

The spelling of 313111302320 in words is "three hundred thirteen billion, one hundred eleven million, three hundred two thousand, three hundred twenty".