100000099999 has 4 divisors (see below), whose sum is σ = 100042066336. Its totient is φ = 99958133664.

The previous prime is 100000099963. The next prime is 100000100009. The reversal of 100000099999 is 999990000001.

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 100000099999 - 2¹⁷ = 99999968927 is a prime.

It is a Duffinian number.

100000099999 is a modest number, since divided by 99999 gives 10 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100000099909) 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, 20979594 + ... + 20984359.

It is an arithmetic number, because the mean of its divisors is an integer number (25010516584).

Almost surely, 2^100000099999 is an apocalyptic number.

100000099999 is a deficient number, since it is larger than the sum of its proper divisors (41966337).

100000099999 is an equidigital number, since it uses as much as digits as its factorization.

100000099999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41966336.

The product of its (nonzero) digits is 59049, while the sum is 46.

The spelling of 100000099999 in words is "one hundred billion, ninety-nine thousand, nine hundred ninety-nine".