11943361 has 2 divisors, whose sum is σ = 11943362. Its totient is φ = 11943360.

The previous prime is 11943359. The next prime is 11943377. The reversal of 11943361 is 16334911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11262736 + 680625 = 3356^2 + 825^2 .

It is an emirp because it is prime and its reverse (16334911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11943361 - 2¹ = 11943359 is a prime.

Together with 11943359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11943301) 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, 5971680 + 5971681.

It is an arithmetic number, because the mean of its divisors is an integer number (5971681).

Almost surely, 2^11943361 is an apocalyptic number.

It is an amenable number.

11943361 is a deficient number, since it is larger than the sum of its proper divisors (1).

11943361 is an equidigital number, since it uses as much as digits as its factorization.

11943361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 28.

The square root of 11943361 is about 3455.9168103414. The cubic root of 11943361 is about 228.5820832645.

The spelling of 11943361 in words is "eleven million, nine hundred forty-three thousand, three hundred sixty-one".