112111999 has 8 divisors (see below), whose sum is σ = 118807920. Its totient is φ = 105604800.

The previous prime is 112111997. The next prime is 112112003. The reversal of 112111999 is 999111211.

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 112111999 - 2¹ = 112111997 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 (112111997) 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, 45957 + ... + 48334.

It is an arithmetic number, because the mean of its divisors is an integer number (14850990).

Almost surely, 2^112111999 is an apocalyptic number.

112111999 is a deficient number, since it is larger than the sum of its proper divisors (6695921).

112111999 is an equidigital number, since it uses as much as digits as its factorization.

112111999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94361.

The product of its digits is 1458, while the sum is 34.

The square root of 112111999 is about 10588.2953774439. The cubic root of 112111999 is about 482.1890740234.

The spelling of 112111999 in words is "one hundred twelve million, one hundred eleven thousand, nine hundred ninety-nine".