111105916717 has 2 divisors, whose sum is σ = 111105916718. Its totient is φ = 111105916716.

The previous prime is 111105916709. The next prime is 111105916721. The reversal of 111105916717 is 717619501111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110685297636 + 420619081 = 332694^2 + 20509^2 .

It is a cyclic number.

It is not a de Polignac number, because 111105916717 - 2³ = 111105916709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111105916717.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111105916777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55552958358 + 55552958359.

It is an arithmetic number, because the mean of its divisors is an integer number (55552958359).

Almost surely, 2^111105916717 is an apocalyptic number.

It is an amenable number.

111105916717 is a deficient number, since it is larger than the sum of its proper divisors (1).

111105916717 is an equidigital number, since it uses as much as digits as its factorization.

111105916717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13230, while the sum is 40.

The spelling of 111105916717 in words is "one hundred eleven billion, one hundred five million, nine hundred sixteen thousand, seven hundred seventeen".