11565323 has 24 divisors (see below), whose sum is σ = 15048000. Its totient is φ = 8784720.

The previous prime is 11565313. The next prime is 11565331. The reversal of 11565323 is 32356511.

It is not a de Polignac number, because 11565323 - 2⁶ = 11565259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11565292 and 11565301.

It is not an unprimeable number, because it can be changed into a prime (11565313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22928 + ... + 23426.

It is an arithmetic number, because the mean of its divisors is an integer number (627000).

Almost surely, 2^11565323 is an apocalyptic number.

11565323 is a deficient number, since it is larger than the sum of its proper divisors (3482677).

11565323 is a wasteful number, since it uses less digits than its factorization.

11565323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567 (or 560 counting only the distinct ones).

The product of its digits is 2700, while the sum is 26.

The square root of 11565323 is about 3400.7827040256. The cubic root of 11565323 is about 226.1444439082.

The spelling of 11565323 in words is "eleven million, five hundred sixty-five thousand, three hundred twenty-three".