11520863 has 2 divisors, whose sum is σ = 11520864. Its totient is φ = 11520862.

The previous prime is 11520853. The next prime is 11520869. The reversal of 11520863 is 36802511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11520863 - 2⁶ = 11520799 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11520869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5760431 + 5760432.

It is an arithmetic number, because the mean of its divisors is an integer number (5760432).

Almost surely, 2^11520863 is an apocalyptic number.

11520863 is a deficient number, since it is larger than the sum of its proper divisors (1).

11520863 is an equidigital number, since it uses as much as digits as its factorization.

11520863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 11520863 is about 3394.2396792213. The cubic root of 11520863 is about 225.8542864718.

The spelling of 11520863 in words is "eleven million, five hundred twenty thousand, eight hundred sixty-three".