311313113320 has 32 divisors (see below), whose sum is σ = 764132188320. Its totient is φ = 113204768320.

The previous prime is 311313113291. The next prime is 311313113341. The reversal of 311313113320 is 23311313113.

It is a super-2 number, since 2×311313113320² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 311313113291 and 311313113300.

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, 353764462 + ... + 353765341.

It is an arithmetic number, because the mean of its divisors is an integer number (23879130885).

Almost surely, 2^311313113320 is an apocalyptic number.

It is an amenable number.

311313113320 is an abundant number, since it is smaller than the sum of its proper divisors (452819075000).

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

311313113320 is a wasteful number, since it uses less digits than its factorization.

311313113320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707529825 (or 707529821 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 311313113320 its reverse (23311313113), we get a palindrome (334624426433).

The spelling of 311313113320 in words is "three hundred eleven billion, three hundred thirteen million, one hundred thirteen thousand, three hundred twenty".