11563243 has 2 divisors, whose sum is σ = 11563244. Its totient is φ = 11563242.

The previous prime is 11563241. The next prime is 11563249. The reversal of 11563243 is 34236511.

11563243 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11563243 - 2¹ = 11563241 is a prime.

Together with 11563241, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11563241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5781621 + 5781622.

It is an arithmetic number, because the mean of its divisors is an integer number (5781622).

Almost surely, 2^11563243 is an apocalyptic number.

11563243 is a deficient number, since it is larger than the sum of its proper divisors (1).

11563243 is an equidigital number, since it uses as much as digits as its factorization.

11563243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 25.

The square root of 11563243 is about 3400.4768783216. The cubic root of 11563243 is about 226.1308858881.

Adding to 11563243 its reverse (34236511), we get a palindrome (45799754).

The spelling of 11563243 in words is "eleven million, five hundred sixty-three thousand, two hundred forty-three".