100100099 has 4 divisors (see below), whose sum is σ = 109200120. Its totient is φ = 91000080.

The previous prime is 100100089. The next prime is 100100107. The reversal of 100100099 is 990001001.

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 100100099 - 2²⁰ = 99051523 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100100099.

It is not an unprimeable number, because it can be changed into a prime (100100069) 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, 4549994 + ... + 4550015.

It is an arithmetic number, because the mean of its divisors is an integer number (27300030).

Almost surely, 2^100100099 is an apocalyptic number.

100100099 is a deficient number, since it is larger than the sum of its proper divisors (9100021).

100100099 is an equidigital number, since it uses as much as digits as its factorization.

100100099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9100020.

The product of its (nonzero) digits is 81, while the sum is 20.

The square root of 100100099 is about 10005.0036981502. The cubic root of 100100099 is about 464.3137045148.

The spelling of 100100099 in words is "one hundred million, one hundred thousand, ninety-nine".