311021120113 has 16 divisors (see below), whose sum is σ = 349862659776. Its totient is φ = 274069282240.

The previous prime is 311021120099. The next prime is 311021120143.

It is a happy number.

311021120113 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 311021120113 - 2³³ = 302431185521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311021120143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3165370 + ... + 3262147.

It is an arithmetic number, because the mean of its divisors is an integer number (21866416236).

Almost surely, 2^311021120113 is an apocalyptic number.

It is an amenable number.

311021120113 is a deficient number, since it is larger than the sum of its proper divisors (38841539663).

311021120113 is a wasteful number, since it uses less digits than its factorization.

311021120113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6427664.

The product of its (nonzero) digits is 36, while the sum is 16.

It can be divided in two parts, 311021 and 120113, that added together give a palindrome (431134).

The spelling of 311021120113 in words is "three hundred eleven billion, twenty-one million, one hundred twenty thousand, one hundred thirteen".