3111144391 has 2 divisors, whose sum is σ = 3111144392. Its totient is φ = 3111144390.

The previous prime is 3111144359. The next prime is 3111144437. The reversal of 3111144391 is 1934411113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3111144391 - 2⁵ = 3111144359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3111144191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555572195 + 1555572196.

It is an arithmetic number, because the mean of its divisors is an integer number (1555572196).

Almost surely, 2^3111144391 is an apocalyptic number.

3111144391 is a deficient number, since it is larger than the sum of its proper divisors (1).

3111144391 is an equidigital number, since it uses as much as digits as its factorization.

3111144391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 28.

The square root of 3111144391 is about 55777.6334295388. The cubic root of 3111144391 is about 1459.8449186313.

The spelling of 3111144391 in words is "three billion, one hundred eleven million, one hundred forty-four thousand, three hundred ninety-one".