1100000999979 has 20 divisors (see below), whose sum is σ = 1877955852784. Its totient is φ = 628571999664.

The previous prime is 1100000999969. The next prime is 1100001000023. The reversal of 1100000999979 is 9799990000011.

It is not a de Polignac number, because 1100000999979 - 2¹⁵ = 1100000967211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100000999969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 970017952 + ... + 970019085.

Almost surely, 2^{1100000999979} is an apocalyptic number.

1100000999979 is a deficient number, since it is larger than the sum of its proper divisors (777954852805).

1100000999979 is an equidigital number, since it uses as much as digits as its factorization.

1100000999979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940037056 (or 1940037047 counting only the distinct ones).

The product of its (nonzero) digits is 413343, while the sum is 54.

The spelling of 1100000999979 in words is "one trillion, one hundred billion, nine hundred ninety-nine thousand, nine hundred seventy-nine".