11331305 has 8 divisors (see below), whose sum is σ = 13623432. Its totient is φ = 9047808.

The previous prime is 11331289. The next prime is 11331311. The reversal of 11331305 is 50313311.

It can be written as a sum of positive squares in 4 ways, for example, as 885481 + 10445824 = 941^2 + 3232^2 .

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 11331305 - 2⁴ = 11331289 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1217 + ... + 4913.

It is an arithmetic number, because the mean of its divisors is an integer number (1702929).

Almost surely, 2^11331305 is an apocalyptic number.

It is an amenable number.

11331305 is a deficient number, since it is larger than the sum of its proper divisors (2292127).

11331305 is an equidigital number, since it uses as much as digits as its factorization.

11331305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4315.

The product of its (nonzero) digits is 135, while the sum is 17.

The square root of 11331305 is about 3366.2003802507. The cubic root of 11331305 is about 224.6087356420.

Adding to 11331305 its reverse (50313311), we get a palindrome (61644616).

The spelling of 11331305 in words is "eleven million, three hundred thirty-one thousand, three hundred five".