112329991 has 12 divisors (see below), whose sum is σ = 115537752. Its totient is φ = 109198656.

The previous prime is 112329979. The next prime is 112330007. The reversal of 112329991 is 199923211.

It is a happy number.

It is not a de Polignac number, because 112329991 - 2²⁵ = 78775559 is a prime.

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 112329991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112329961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 570105 + ... + 570301.

It is an arithmetic number, because the mean of its divisors is an integer number (9628146).

Almost surely, 2^112329991 is an apocalyptic number.

112329991 is a deficient number, since it is larger than the sum of its proper divisors (3207761).

112329991 is an equidigital number, since it uses as much as digits as its factorization.

112329991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 377 counting only the distinct ones).

The product of its digits is 8748, while the sum is 37.

The square root of 112329991 is about 10598.5843866056. The cubic root of 112329991 is about 482.5013965435.

The spelling of 112329991 in words is "one hundred twelve million, three hundred twenty-nine thousand, nine hundred ninety-one".