11388117563 has 2 divisors, whose sum is σ = 11388117564. Its totient is φ = 11388117562.

The previous prime is 11388117529. The next prime is 11388117569. The reversal of 11388117563 is 36571188311.

11388117563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11388117563 - 2¹⁸ = 11387855419 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11388117569) 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, 5694058781 + 5694058782.

It is an arithmetic number, because the mean of its divisors is an integer number (5694058782).

Almost surely, 2^11388117563 is an apocalyptic number.

11388117563 is a deficient number, since it is larger than the sum of its proper divisors (1).

11388117563 is an equidigital number, since it uses as much as digits as its factorization.

11388117563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 44.

The spelling of 11388117563 in words is "eleven billion, three hundred eighty-eight million, one hundred seventeen thousand, five hundred sixty-three".