101111111099 has 4 divisors (see below), whose sum is σ = 101330441520. Its totient is φ = 100891780680.

The previous prime is 101111111069. The next prime is 101111111107. The reversal of 101111111099 is 990111111101.

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 101111111099 - 2²⁰ = 101110062523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101111111069) 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, 109664519 + ... + 109665440.

It is an arithmetic number, because the mean of its divisors is an integer number (25332610380).

Almost surely, 2^101111111099 is an apocalyptic number.

101111111099 is a deficient number, since it is larger than the sum of its proper divisors (219330421).

101111111099 is an equidigital number, since it uses as much as digits as its factorization.

101111111099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219330420.

The product of its (nonzero) digits is 81, while the sum is 26.

The spelling of 101111111099 in words is "one hundred one billion, one hundred eleven million, one hundred eleven thousand, ninety-nine".