11300309 has 6 divisors (see below), whose sum is σ = 11399010. Its totient is φ = 11202416.

The previous prime is 11300293. The next prime is 11300353. The reversal of 11300309 is 90300311.

It can be written as a sum of positive squares in 3 ways, for example, as 178084 + 11122225 = 422^2 + 3335^2 .

It is not a de Polignac number, because 11300309 - 2⁴ = 11300293 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11300609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21947 + ... + 22455.

It is an arithmetic number, because the mean of its divisors is an integer number (1899835).

Almost surely, 2^11300309 is an apocalyptic number.

It is an amenable number.

11300309 is a deficient number, since it is larger than the sum of its proper divisors (98701).

11300309 is an frugal number, since it uses more digits than its factorization.

11300309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 11300309 is about 3361.5932234582. The cubic root of 11300309 is about 224.4037480720.

The spelling of 11300309 in words is "eleven million, three hundred thousand, three hundred nine".