311311120100 has 36 divisors (see below), whose sum is σ = 675570802368. Its totient is φ = 124519716000.

The previous prime is 311311120069. The next prime is 311311120123. The reversal of 311311120100 is 1021113113.

It is a happy number.

It is a super-2 number, since 2×311311120100² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3911705 + ... + 3990495.

Almost surely, 2^311311120100 is an apocalyptic number.

It is an amenable number.

311311120100 is an abundant number, since it is smaller than the sum of its proper divisors (364259682268).

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

311311120100 is a wasteful number, since it uses less digits than its factorization.

311311120100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118316 (or 118309 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 311311120100 its reverse (1021113113), we get a palindrome (312332233213).

The spelling of 311311120100 in words is "three hundred eleven billion, three hundred eleven million, one hundred twenty thousand, one hundred".