112031999 has 4 divisors (see below), whose sum is σ = 117928440. Its totient is φ = 106135560.

The previous prime is 112031981. The next prime is 112032007. The reversal of 112031999 is 999130211.

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 112031999 - 2⁸ = 112031743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112039999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2948192 + ... + 2948229.

It is an arithmetic number, because the mean of its divisors is an integer number (29482110).

Almost surely, 2^112031999 is an apocalyptic number.

112031999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

112031999 is a deficient number, since it is larger than the sum of its proper divisors (5896441).

112031999 is an equidigital number, since it uses as much as digits as its factorization.

112031999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5896440.

The product of its (nonzero) digits is 4374, while the sum is 35.

The square root of 112031999 is about 10584.5169469372. The cubic root of 112031999 is about 482.0743545010.

The spelling of 112031999 in words is "one hundred twelve million, thirty-one thousand, nine hundred ninety-nine".