11118813 has 8 divisors (see below), whose sum is σ = 15034176. Its totient is φ = 7308000.

The previous prime is 11118797. The next prime is 11118841. The reversal of 11118813 is 31881111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11118813 - 2⁴ = 11118797 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 25888 + ... + 26313.

It is an arithmetic number, because the mean of its divisors is an integer number (1879272).

Almost surely, 2^11118813 is an apocalyptic number.

It is an amenable number.

11118813 is a deficient number, since it is larger than the sum of its proper divisors (3915363).

11118813 is an equidigital number, since it uses as much as digits as its factorization.

11118813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52275.

The product of its digits is 192, while the sum is 24.

The square root of 11118813 is about 3334.4884165341. The cubic root of 11118813 is about 223.1958637676.

Adding to 11118813 its reverse (31881111), we get a palindrome (42999924).

The spelling of 11118813 in words is "eleven million, one hundred eighteen thousand, eight hundred thirteen".