111002011979 has 2 divisors, whose sum is σ = 111002011980. Its totient is φ = 111002011978.

The previous prime is 111002011973. The next prime is 111002011987. The reversal of 111002011979 is 979110200111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111002011979 - 2⁴ = 111002011963 is a prime.

It is not a weakly prime, because it can be changed into another prime (111002011973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55501005989 + 55501005990.

It is an arithmetic number, because the mean of its divisors is an integer number (55501005990).

Almost surely, 2^111002011979 is an apocalyptic number.

111002011979 is a deficient number, since it is larger than the sum of its proper divisors (1).

111002011979 is an equidigital number, since it uses as much as digits as its factorization.

111002011979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 32.

The spelling of 111002011979 in words is "one hundred eleven billion, two million, eleven thousand, nine hundred seventy-nine".