311320112311 has 64 divisors (see below), whose sum is σ = 399435079680. Its totient is φ = 239111516160.

The previous prime is 311320112297. The next prime is 311320112333. The reversal of 311320112311 is 113211023113.

It is not a de Polignac number, because 311320112311 - 2²⁷ = 311185894583 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311320112011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3920346 + ... + 3998968.

It is an arithmetic number, because the mean of its divisors is an integer number (6241173120).

Almost surely, 2^311320112311 is an apocalyptic number.

311320112311 is a deficient number, since it is larger than the sum of its proper divisors (88114967369).

311320112311 is a wasteful number, since it uses less digits than its factorization.

311320112311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78736.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 311320112311 its reverse (113211023113), we get a palindrome (424531135424).

The spelling of 311320112311 in words is "three hundred eleven billion, three hundred twenty million, one hundred twelve thousand, three hundred eleven".