11306321 has 4 divisors (see below), whose sum is σ = 12176052. Its totient is φ = 10436592.

The previous prime is 11306303. The next prime is 11306327. The reversal of 11306321 is 12360311.

11306321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12360311 = 41 ⋅301471.

It can be written as a sum of positive squares in 2 ways, for example, as 1918225 + 9388096 = 1385^2 + 3064^2 .

It is a cyclic number.

It is not a de Polignac number, because 11306321 - 2¹⁴ = 11289937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11306321.

It is not an unprimeable number, because it can be changed into a prime (11306327) 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, 434846 + ... + 434871.

It is an arithmetic number, because the mean of its divisors is an integer number (3044013).

Almost surely, 2^11306321 is an apocalyptic number.

It is an amenable number.

11306321 is a deficient number, since it is larger than the sum of its proper divisors (869731).

11306321 is an equidigital number, since it uses as much as digits as its factorization.

11306321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869730.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 11306321 is about 3362.4873233962. The cubic root of 11306321 is about 224.4435368409.

Adding to 11306321 its reverse (12360311), we get a palindrome (23666632).

The spelling of 11306321 in words is "eleven million, three hundred six thousand, three hundred twenty-one".