100111011219979 has 4 divisors (see below), whose sum is σ = 103340398678720. Its totient is φ = 96881623761240.

The previous prime is 100111011219953. The next prime is 100111011220009. The reversal of 100111011219979 is 979912110111001.

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

It is a cyclic number.

It is not a de Polignac number, because 100111011219979 - 2¹⁵ = 100111011187211 is a prime.

It is a super-2 number, since 2×100111011219979² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100111011219679) 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, 1614693729324 + ... + 1614693729385.

It is an arithmetic number, because the mean of its divisors is an integer number (25835099669680).

Almost surely, 2^{100111011219979} is an apocalyptic number.

100111011219979 is a deficient number, since it is larger than the sum of its proper divisors (3229387458741).

100111011219979 is an equidigital number, since it uses as much as digits as its factorization.

100111011219979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3229387458740.

The product of its (nonzero) digits is 10206, while the sum is 43.

The spelling of 100111011219979 in words is "one hundred trillion, one hundred eleven billion, eleven million, two hundred nineteen thousand, nine hundred seventy-nine".