3111322312313 has 4 divisors (see below), whose sum is σ = 3111376035060. Its totient is φ = 3111268589568.

The previous prime is 3111322312291. The next prime is 3111322312339. The reversal of 3111322312313 is 3132132231113.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2283810067984 + 827512244329 = 1511228^2 + 909677^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3111322312313 is a prime.

It is a super-2 number, since 2×3111322312313² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3111322302313) 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, 26774408 + ... + 26890361.

It is an arithmetic number, because the mean of its divisors is an integer number (777844008765).

Almost surely, 2^{3111322312313} is an apocalyptic number.

It is an amenable number.

3111322312313 is a deficient number, since it is larger than the sum of its proper divisors (53722747).

3111322312313 is an equidigital number, since it uses as much as digits as its factorization.

3111322312313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53722746.

The product of its digits is 1944, while the sum is 26.

Adding to 3111322312313 its reverse (3132132231113), we get a palindrome (6243454543426).

The spelling of 3111322312313 in words is "three trillion, one hundred eleven billion, three hundred twenty-two million, three hundred twelve thousand, three hundred thirteen".