11118823 has 4 divisors (see below), whose sum is σ = 11129848. Its totient is φ = 11107800.

The previous prime is 11118797. The next prime is 11118841. The reversal of 11118823 is 32881111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11118823 - 2⁹ = 11118311 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 (11118853) 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, 3828 + ... + 6073.

It is an arithmetic number, because the mean of its divisors is an integer number (2782462).

Almost surely, 2^11118823 is an apocalyptic number.

11118823 is a deficient number, since it is larger than the sum of its proper divisors (11025).

11118823 is an equidigital number, since it uses as much as digits as its factorization.

11118823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11024.

The product of its digits is 384, while the sum is 25.

The square root of 11118823 is about 3334.4899160141. The cubic root of 11118823 is about 223.1959306800.

Adding to 11118823 its reverse (32881111), we get a palindrome (43999934).

The spelling of 11118823 in words is "eleven million, one hundred eighteen thousand, eight hundred twenty-three".