1000111099979 has 2 divisors, whose sum is σ = 1000111099980. Its totient is φ = 1000111099978.

The previous prime is 1000111099943. The next prime is 1000111099991. The reversal of 1000111099979 is 9799901110001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1000111099979 - 2²⁴ = 1000094322763 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1000111089979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500055549989 + 500055549990.

It is an arithmetic number, because the mean of its divisors is an integer number (500055549990).

Almost surely, 2^{1000111099979} is an apocalyptic number.

1000111099979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000111099979 is an equidigital number, since it uses as much as digits as its factorization.

1000111099979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45927, while the sum is 47.

The spelling of 1000111099979 in words is "one trillion, one hundred eleven million, ninety-nine thousand, nine hundred seventy-nine".