111112110971 has 2 divisors, whose sum is σ = 111112110972. Its totient is φ = 111112110970.

The previous prime is 111112110937. The next prime is 111112111007. The reversal of 111112110971 is 179011211111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111112110971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111112110971.

It is not a weakly prime, because it can be changed into another prime (111112110271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55556055485 + 55556055486.

It is an arithmetic number, because the mean of its divisors is an integer number (55556055486).

Almost surely, 2^111112110971 is an apocalyptic number.

111112110971 is a deficient number, since it is larger than the sum of its proper divisors (1).

111112110971 is an equidigital number, since it uses as much as digits as its factorization.

111112110971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 26.

The spelling of 111112110971 in words is "one hundred eleven billion, one hundred twelve million, one hundred ten thousand, nine hundred seventy-one".