3112331111311 has 4 divisors (see below), whose sum is σ = 3219652873800. Its totient is φ = 3005009348824.

The previous prime is 3112331111297. The next prime is 3112331111347. The reversal of 3112331111311 is 1131111332113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3112331111311 - 2³⁵ = 3077971372943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3112331111111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53660881201 + ... + 53660881258.

It is an arithmetic number, because the mean of its divisors is an integer number (804913218450).

Almost surely, 2^{3112331111311} is an apocalyptic number.

3112331111311 is a deficient number, since it is larger than the sum of its proper divisors (107321762489).

3112331111311 is a wasteful number, since it uses less digits than its factorization.

3112331111311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107321762488.

The product of its digits is 162, while the sum is 22.

Adding to 3112331111311 its reverse (1131111332113), we get a palindrome (4243442443424).

The spelling of 3112331111311 in words is "three trillion, one hundred twelve billion, three hundred thirty-one million, one hundred eleven thousand, three hundred eleven".