313311220000 has 60 divisors (see below), whose sum is σ = 770792647086. Its totient is φ = 125324480000.

The previous prime is 313311219997. The next prime is 313311220031. The reversal of 313311220000 is 22113313.

It can be written as a sum of positive squares in 5 ways, for example, as 64266306064 + 249044913936 = 253508^2 + 499044^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 7812781 + ... + 7852780.

Almost surely, 2^313311220000 is an apocalyptic number.

It is an amenable number.

313311220000 is an abundant number, since it is smaller than the sum of its proper divisors (457481427086).

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

313311220000 is an equidigital number, since it uses as much as digits as its factorization.

313311220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15665591 (or 15665568 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 313311220000 its reverse (22113313), we get a palindrome (313333333313).

The spelling of 313311220000 in words is "three hundred thirteen billion, three hundred eleven million, two hundred twenty thousand".