111060511609 has 2 divisors, whose sum is σ = 111060511610. Its totient is φ = 111060511608.

The previous prime is 111060511579. The next prime is 111060511633. The reversal of 111060511609 is 906115060111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108901980009 + 2158531600 = 330003^2 + 46460^2 .

It is a cyclic number.

It is not a de Polignac number, because 111060511609 - 2³⁵ = 76700773241 is a prime.

It is not a weakly prime, because it can be changed into another prime (111060511699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55530255804 + 55530255805.

It is an arithmetic number, because the mean of its divisors is an integer number (55530255805).

Almost surely, 2^111060511609 is an apocalyptic number.

It is an amenable number.

111060511609 is a deficient number, since it is larger than the sum of its proper divisors (1).

111060511609 is an equidigital number, since it uses as much as digits as its factorization.

111060511609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 31.

The spelling of 111060511609 in words is "one hundred eleven billion, sixty million, five hundred eleven thousand, six hundred nine".