311113112331 has 16 divisors (see below), whose sum is σ = 485639981568. Its totient is φ = 173442849600.

The previous prime is 311113112273. The next prime is 311113112351. The reversal of 311113112331 is 133211311113.

311113112331 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 311113112331 - 2⁷ = 311113112203 is a prime.

It is a super-2 number, since 2×311113112331² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 311113112298 and 311113112307.

It is not an unprimeable number, because it can be changed into a prime (311113112351) 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, 180668775 + ... + 180670496.

It is an arithmetic number, because the mean of its divisors is an integer number (30352498848).

Almost surely, 2^311113112331 is an apocalyptic number.

311113112331 is a deficient number, since it is larger than the sum of its proper divisors (174526869237).

311113112331 is a wasteful number, since it uses less digits than its factorization.

311113112331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361339322.

The product of its digits is 162, while the sum is 21.

Adding to 311113112331 its reverse (133211311113), we get a palindrome (444324423444).

The spelling of 311113112331 in words is "three hundred eleven billion, one hundred thirteen million, one hundred twelve thousand, three hundred thirty-one".