100011219979 has 4 divisors (see below), whose sum is σ = 109103149080. Its totient is φ = 90919290880.

The previous prime is 100011219947. The next prime is 100011219983. The reversal of 100011219979 is 979912110001.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 100011219979 - 2⁵ = 100011219947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100011219479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4545964534 + ... + 4545964555.

It is an arithmetic number, because the mean of its divisors is an integer number (27275787270).

Almost surely, 2^100011219979 is an apocalyptic number.

100011219979 is a deficient number, since it is larger than the sum of its proper divisors (9091929101).

100011219979 is an equidigital number, since it uses as much as digits as its factorization.

100011219979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9091929100.

The product of its (nonzero) digits is 10206, while the sum is 40.

The spelling of 100011219979 in words is "one hundred billion, eleven million, two hundred nineteen thousand, nine hundred seventy-nine".