11118023 has 4 divisors (see below), whose sum is σ = 12706320. Its totient is φ = 9529728.

The previous prime is 11118013. The next prime is 11118031. The reversal of 11118023 is 32081111.

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 11118023 - 2⁴ = 11118007 is a prime.

It is a super-2 number, since 2×11118023² = 247220870857058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11117992 and 11118010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11118013) 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, 794138 + ... + 794151.

It is an arithmetic number, because the mean of its divisors is an integer number (3176580).

Almost surely, 2^11118023 is an apocalyptic number.

11118023 is a deficient number, since it is larger than the sum of its proper divisors (1588297).

11118023 is an equidigital number, since it uses as much as digits as its factorization.

11118023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588296.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 11118023 is about 3334.3699554788. The cubic root of 11118023 is about 223.1905775646.

Adding to 11118023 its reverse (32081111), we get a palindrome (43199134).

The spelling of 11118023 in words is "eleven million, one hundred eighteen thousand, twenty-three".