111202011979 has 2 divisors, whose sum is σ = 111202011980. Its totient is φ = 111202011978.

The previous prime is 111202011967. The next prime is 111202012037. The reversal of 111202011979 is 979110202111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111202011979 - 2²⁷ = 111067794251 is a prime.

It is not a weakly prime, because it can be changed into another prime (111202011929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55601005989 + 55601005990.

It is an arithmetic number, because the mean of its divisors is an integer number (55601005990).

Almost surely, 2^111202011979 is an apocalyptic number.

111202011979 is a deficient number, since it is larger than the sum of its proper divisors (1).

111202011979 is an equidigital number, since it uses as much as digits as its factorization.

111202011979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 34.

The spelling of 111202011979 in words is "one hundred eleven billion, two hundred two million, eleven thousand, nine hundred seventy-nine".