11249321 has 2 divisors, whose sum is σ = 11249322. Its totient is φ = 11249320.

The previous prime is 11249297. The next prime is 11249339. The reversal of 11249321 is 12394211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6431296 + 4818025 = 2536^2 + 2195^2 .

It is an emirp because it is prime and its reverse (12394211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11249321 - 2¹⁸ = 10987177 is a prime.

It is a super-2 number, since 2×11249321² = 253094445922082, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11243321) 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, 5624660 + 5624661.

It is an arithmetic number, because the mean of its divisors is an integer number (5624661).

Almost surely, 2^11249321 is an apocalyptic number.

It is an amenable number.

11249321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11249321 is an equidigital number, since it uses as much as digits as its factorization.

11249321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 23.

The square root of 11249321 is about 3354.0007453786. Note that the first 3 decimals coincide. The cubic root of 11249321 is about 224.0657292759.

The spelling of 11249321 in words is "eleven million, two hundred forty-nine thousand, three hundred twenty-one".