11113209 has 24 divisors (see below), whose sum is σ = 17214912. Its totient is φ = 6890400.

The previous prime is 11113183. The next prime is 11113213. The reversal of 11113209 is 90231111.

11113209 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11113209 - 2¹¹ = 11111161 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11113191 and 11113200.

It is not an unprimeable number, because it can be changed into a prime (11113259) 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 23 ways as a sum of consecutive naturals, for example, 6934 + ... + 8384.

It is an arithmetic number, because the mean of its divisors is an integer number (717288).

Almost surely, 2^11113209 is an apocalyptic number.

It is an amenable number.

11113209 is a deficient number, since it is larger than the sum of its proper divisors (6101703).

11113209 is a wasteful number, since it uses less digits than its factorization.

11113209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517 (or 1514 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The square root of 11113209 is about 3333.6480018142. The cubic root of 11113209 is about 223.1583597697.

The spelling of 11113209 in words is "eleven million, one hundred thirteen thousand, two hundred nine".