11303321 has 2 divisors, whose sum is σ = 11303322. Its totient is φ = 11303320.

The previous prime is 11303293. The next prime is 11303329. The reversal of 11303321 is 12330311.

11303321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7840000 + 3463321 = 2800^2 + 1861^2 .

It is a cyclic number.

It is not a de Polignac number, because 11303321 - 2¹⁴ = 11286937 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11303296 and 11303305.

It is not a weakly prime, because it can be changed into another prime (11303329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5651660 + 5651661.

It is an arithmetic number, because the mean of its divisors is an integer number (5651661).

Almost surely, 2^11303321 is an apocalyptic number.

It is an amenable number.

11303321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11303321 is an equidigital number, since it uses as much as digits as its factorization.

11303321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 11303321 is about 3362.0411954644. The cubic root of 11303321 is about 224.4236839294.

Adding to 11303321 its reverse (12330311), we get a palindrome (23633632).

It can be divided in two parts, 11303 and 321, that multiplied together give a palindrome (3628263).

The spelling of 11303321 in words is "eleven million, three hundred three thousand, three hundred twenty-one".