111112319999 has 4 divisors (see below), whose sum is σ = 112995579720. Its totient is φ = 109229060280.

The previous prime is 111112319917. The next prime is 111112320041. The reversal of 111112319999 is 999913211111.

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 111112319999 - 2²⁰ = 111111271423 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 (111112319909) 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, 941629772 + ... + 941629889.

It is an arithmetic number, because the mean of its divisors is an integer number (28248894930).

Almost surely, 2^111112319999 is an apocalyptic number.

111112319999 is a deficient number, since it is larger than the sum of its proper divisors (1883259721).

111112319999 is an equidigital number, since it uses as much as digits as its factorization.

111112319999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883259720.

The product of its digits is 39366, while the sum is 47.

The spelling of 111112319999 in words is "one hundred eleven billion, one hundred twelve million, three hundred nineteen thousand, nine hundred ninety-nine".