11309309 has 12 divisors (see below), whose sum is σ = 12696768. Its totient is φ = 9990000.

The previous prime is 11309303. The next prime is 11309321. The reversal of 11309309 is 90390311.

11309309 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 11309309 - 2⁴ = 11309293 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 (11309303) 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 11 ways as a sum of consecutive naturals, for example, 14684 + ... + 15434.

It is an arithmetic number, because the mean of its divisors is an integer number (1058064).

Almost surely, 2^11309309 is an apocalyptic number.

It is an amenable number.

11309309 is a deficient number, since it is larger than the sum of its proper divisors (1387459).

11309309 is an equidigital number, since it uses as much as digits as its factorization.

11309309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836 (or 799 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 26.

The square root of 11309309 is about 3362.9316079873. The cubic root of 11309309 is about 224.4633068504.

The spelling of 11309309 in words is "eleven million, three hundred nine thousand, three hundred nine".