100111009979 has 2 divisors, whose sum is σ = 100111009980. Its totient is φ = 100111009978.

The previous prime is 100111009931. The next prime is 100111010003. The reversal of 100111009979 is 979900111001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100111009979 - 2⁸ = 100111009723 is a prime.

It is not a weakly prime, because it can be changed into another prime (100111009279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50055504989 + 50055504990.

It is an arithmetic number, because the mean of its divisors is an integer number (50055504990).

Almost surely, 2^100111009979 is an apocalyptic number.

100111009979 is a deficient number, since it is larger than the sum of its proper divisors (1).

100111009979 is an equidigital number, since it uses as much as digits as its factorization.

100111009979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5103, while the sum is 38.

The spelling of 100111009979 in words is "one hundred billion, one hundred eleven million, nine thousand, nine hundred seventy-nine".