112345678889 has 4 divisors (see below), whose sum is σ = 112973308560. Its totient is φ = 111718049220.

The previous prime is 112345678847. The next prime is 112345678897. The reversal of 112345678889 is 988876543211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 988876543211 = 241 ⋅4103222171.

It is not a de Polignac number, because 112345678889 - 2²⁴ = 112328901673 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (112345608889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313814567 + ... + 313814924.

It is an arithmetic number, because the mean of its divisors is an integer number (28243327140).

Almost surely, 2^112345678889 is an apocalyptic number.

It is an amenable number.

112345678889 is a deficient number, since it is larger than the sum of its proper divisors (627629671).

112345678889 is an equidigital number, since it uses as much as digits as its factorization.

112345678889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627629670.

The product of its digits is 23224320, while the sum is 62.

The spelling of 112345678889 in words is "one hundred twelve billion, three hundred forty-five million, six hundred seventy-eight thousand, eight hundred eighty-nine".