11243321 has 2 divisors, whose sum is σ = 11243322. Its totient is φ = 11243320.

The previous prime is 11243317. The next prime is 11243327. The reversal of 11243321 is 12334211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6451600 + 4791721 = 2540^2 + 2189^2 .

It is a cyclic number.

It is not a de Polignac number, because 11243321 - 2² = 11243317 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11243321.

It is not a weakly prime, because it can be changed into another prime (11243327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5621660 + 5621661.

It is an arithmetic number, because the mean of its divisors is an integer number (5621661).

Almost surely, 2^11243321 is an apocalyptic number.

It is an amenable number.

11243321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11243321 is an equidigital number, since it uses as much as digits as its factorization.

11243321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 17.

The square root of 11243321 is about 3353.1061718949. The cubic root of 11243321 is about 224.0258858796.

Adding to 11243321 its reverse (12334211), we get a palindrome (23577532).

The spelling of 11243321 in words is "eleven million, two hundred forty-three thousand, three hundred twenty-one".