3113111311 has 2 divisors, whose sum is σ = 3113111312. Its totient is φ = 3113111310.

The previous prime is 3113111279. The next prime is 3113111329. The reversal of 3113111311 is 1131113113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3113111311 - 2⁵ = 3113111279 is a prime.

It is a super-2 number, since 2×3113111311² = 19382924069352277442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3113111371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1556555655 + 1556555656.

It is an arithmetic number, because the mean of its divisors is an integer number (1556555656).

Almost surely, 2^3113111311 is an apocalyptic number.

3113111311 is a deficient number, since it is larger than the sum of its proper divisors (1).

3113111311 is an equidigital number, since it uses as much as digits as its factorization.

3113111311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27, while the sum is 16.

The square root of 3113111311 is about 55795.2624422540. The cubic root of 3113111311 is about 1460.1525003337.

Adding to 3113111311 its reverse (1131113113), we get a palindrome (4244224424).

It can be divided in two parts, 3 and 113111311, that multiplied together give a palindrome (339333933).

The spelling of 3113111311 in words is "three billion, one hundred thirteen million, one hundred eleven thousand, three hundred eleven".