11321243 has 2 divisors, whose sum is σ = 11321244. Its totient is φ = 11321242.

The previous prime is 11321203. The next prime is 11321251. The reversal of 11321243 is 34212311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11321243 - 2¹⁸ = 11059099 is a prime.

It is not a weakly prime, because it can be changed into another prime (11321203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660621 + 5660622.

It is an arithmetic number, because the mean of its divisors is an integer number (5660622).

Almost surely, 2^11321243 is an apocalyptic number.

11321243 is a deficient number, since it is larger than the sum of its proper divisors (1).

11321243 is an equidigital number, since it uses as much as digits as its factorization.

11321243 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 11321243 is about 3364.7054848827. The cubic root of 11321243 is about 224.5422330818.

Adding to 11321243 its reverse (34212311), we get a palindrome (45533554).

The spelling of 11321243 in words is "eleven million, three hundred twenty-one thousand, two hundred forty-three".