11560321 has 4 divisors (see below), whose sum is σ = 11570944. Its totient is φ = 11549700.

The previous prime is 11560313. The next prime is 11560327. The reversal of 11560321 is 12306511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12306511 = 7 ⋅1758073.

It is a cyclic number.

It is not a de Polignac number, because 11560321 - 2³ = 11560313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11560327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3465 + ... + 5926.

It is an arithmetic number, because the mean of its divisors is an integer number (2892736).

Almost surely, 2^11560321 is an apocalyptic number.

It is an amenable number.

11560321 is a deficient number, since it is larger than the sum of its proper divisors (10623).

11560321 is an equidigital number, since it uses as much as digits as its factorization.

11560321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10622.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 11560321 is about 3400.0472055547. The cubic root of 11560321 is about 226.1118367305. Note that the first 3 decimals are identical.

Adding to 11560321 its reverse (12306511), we get a palindrome (23866832).

It can be divided in two parts, 11560 and 321, that added together give a square (11881 = 109²).

The spelling of 11560321 in words is "eleven million, five hundred sixty thousand, three hundred twenty-one".