100111000999 has 8 divisors (see below), whose sum is σ = 103487829120. Its totient is φ = 96743388000.

The previous prime is 100111000961. The next prime is 100111001009. The reversal of 100111000999 is 999000111001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100111000999 - 2¹⁵ = 100110968231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

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 100111000999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100111000699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2281684 + ... + 2325145.

It is an arithmetic number, because the mean of its divisors is an integer number (12935978640).

Almost surely, 2^100111000999 is an apocalyptic number.

100111000999 is a deficient number, since it is larger than the sum of its proper divisors (3376828121).

100111000999 is an equidigital number, since it uses as much as digits as its factorization.

100111000999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4607561.

The product of its (nonzero) digits is 729, while the sum is 31.

The spelling of 100111000999 in words is "one hundred billion, one hundred eleven million, nine hundred ninety-nine", and thus it is an aban number.