111568118171 has 2 divisors, whose sum is σ = 111568118172. Its totient is φ = 111568118170.

The previous prime is 111568118119. The next prime is 111568118213. The reversal of 111568118171 is 171811865111.

It is a strong prime.

It is an emirp because it is prime and its reverse (171811865111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111568118171 - 2³⁰ = 110494376347 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (111568118771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55784059085 + 55784059086.

It is an arithmetic number, because the mean of its divisors is an integer number (55784059086).

Almost surely, 2^111568118171 is an apocalyptic number.

111568118171 is a deficient number, since it is larger than the sum of its proper divisors (1).

111568118171 is an equidigital number, since it uses as much as digits as its factorization.

111568118171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 41.

The spelling of 111568118171 in words is "one hundred eleven billion, five hundred sixty-eight million, one hundred eighteen thousand, one hundred seventy-one".