11309305 has 8 divisors (see below), whose sum is σ = 15509952. Its totient is φ = 7754928.

The previous prime is 11309303. The next prime is 11309321. The reversal of 11309305 is 50390311.

11309305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11309305 - 2¹ = 11309303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11309303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161527 + ... + 161596.

It is an arithmetic number, because the mean of its divisors is an integer number (1938744).

Almost surely, 2^11309305 is an apocalyptic number.

It is an amenable number.

11309305 is a deficient number, since it is larger than the sum of its proper divisors (4200647).

11309305 is an equidigital number, since it uses as much as digits as its factorization.

11309305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323135.

The product of its (nonzero) digits is 405, while the sum is 22.

The square root of 11309305 is about 3362.9310132680. The cubic root of 11309305 is about 224.4632803868.

Adding to 11309305 its reverse (50390311), we get a palindrome (61699616).

The spelling of 11309305 in words is "eleven million, three hundred nine thousand, three hundred five".