11113309 has 4 divisors (see below), whose sum is σ = 11698240. Its totient is φ = 10528380.

The previous prime is 11113273. The next prime is 11113321. The reversal of 11113309 is 90331111.

It is a happy number.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11113309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 584911 = 11113309 / (1 + 1 + 1 + 1 + 3 + 3 + 0 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11113339) 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, 292437 + ... + 292474.

It is an arithmetic number, because the mean of its divisors is an integer number (2924560).

Almost surely, 2^11113309 is an apocalyptic number.

11113309 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11113309 is a deficient number, since it is larger than the sum of its proper divisors (584931).

11113309 is an equidigital number, since it uses as much as digits as its factorization.

11113309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584930.

The product of its (nonzero) digits is 81, while the sum is 19.

The square root of 11113309 is about 3333.6630003646. The cubic root of 11113309 is about 223.1590291164.

The spelling of 11113309 in words is "eleven million, one hundred thirteen thousand, three hundred nine".