111110111000999 has 4 divisors (see below), whose sum is σ = 121211030182920. Its totient is φ = 101009191819080.

The previous prime is 111110111000957. The next prime is 111110111001017. The reversal of 111110111000999 is 999000111011111.

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 111110111000999 - 2¹² = 111110110996903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111110111000299) 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, 5050459590944 + ... + 5050459590965.

It is an arithmetic number, because the mean of its divisors is an integer number (30302757545730).

Almost surely, 2^{111110111000999} is an apocalyptic number.

111110111000999 is a deficient number, since it is larger than the sum of its proper divisors (10100919181921).

111110111000999 is a wasteful number, since it uses less digits than its factorization.

111110111000999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10100919181920.

The product of its (nonzero) digits is 729, while the sum is 35.

The spelling of 111110111000999 in words is "one hundred eleven trillion, one hundred ten billion, one hundred eleven million, nine hundred ninety-nine", and thus it is an aban number.