11112389 has 4 divisors (see below), whose sum is σ = 11119200. Its totient is φ = 11105580.

The previous prime is 11112379. The next prime is 11112391. The reversal of 11112389 is 98321111.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11112389 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112319) 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, 662 + ... + 4760.

It is an arithmetic number, because the mean of its divisors is an integer number (2779800).

Almost surely, 2^11112389 is an apocalyptic number.

It is an amenable number.

11112389 is a deficient number, since it is larger than the sum of its proper divisors (6811).

11112389 is an equidigital number, since it uses as much as digits as its factorization.

11112389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6810.

The product of its digits is 432, while the sum is 26.

The square root of 11112389 is about 3333.5250111556. The cubic root of 11112389 is about 223.1528709754.

The spelling of 11112389 in words is "eleven million, one hundred twelve thousand, three hundred eighty-nine".