100001109999979 has 2 divisors, whose sum is σ = 100001109999980. Its totient is φ = 100001109999978.

The previous prime is 100001109999907. The next prime is 100001110000009. The reversal of 100001109999979 is 979999901100001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100001109999979 - 2⁹ = 100001109999467 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100001109999979.

It is not a weakly prime, because it can be changed into another prime (100001109999779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000554999989 + 50000554999990.

It is an arithmetic number, because the mean of its divisors is an integer number (50000554999990).

Almost surely, 2^{100001109999979} is an apocalyptic number.

100001109999979 is a deficient number, since it is larger than the sum of its proper divisors (1).

100001109999979 is an equidigital number, since it uses as much as digits as its factorization.

100001109999979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3720087, while the sum is 64.

The spelling of 100001109999979 in words is "one hundred trillion, one billion, one hundred nine million, nine hundred ninety-nine thousand, nine hundred seventy-nine".