12113555563 has 2 divisors, whose sum is σ = 12113555564. Its totient is φ = 12113555562.

The previous prime is 12113555561. The next prime is 12113555593. The reversal of 12113555563 is 36555531121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12113555563 - 2¹ = 12113555561 is a prime.

Together with 12113555561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12113555561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056777781 + 6056777782.

It is an arithmetic number, because the mean of its divisors is an integer number (6056777782).

Almost surely, 2^12113555563 is an apocalyptic number.

12113555563 is a deficient number, since it is larger than the sum of its proper divisors (1).

12113555563 is an equidigital number, since it uses as much as digits as its factorization.

12113555563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67500, while the sum is 37.

The spelling of 12113555563 in words is "twelve billion, one hundred thirteen million, five hundred fifty-five thousand, five hundred sixty-three".