100120111979 has 2 divisors, whose sum is σ = 100120111980. Its totient is φ = 100120111978.

The previous prime is 100120111951. The next prime is 100120112087. The reversal of 100120111979 is 979111021001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100120111979 - 2⁸ = 100120111723 is a prime.

It is not a weakly prime, because it can be changed into another prime (100120111379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060055989 + 50060055990.

It is an arithmetic number, because the mean of its divisors is an integer number (50060055990).

Almost surely, 2^100120111979 is an apocalyptic number.

100120111979 is a deficient number, since it is larger than the sum of its proper divisors (1).

100120111979 is an equidigital number, since it uses as much as digits as its factorization.

100120111979 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 100120111979 in words is "one hundred billion, one hundred twenty million, one hundred eleven thousand, nine hundred seventy-nine".