12136541563 has 2 divisors, whose sum is σ = 12136541564. Its totient is φ = 12136541562.

The previous prime is 12136541561. The next prime is 12136541591. The reversal of 12136541563 is 36514563121.

It is a weak prime.

It is an emirp because it is prime and its reverse (36514563121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12136541563 - 2¹ = 12136541561 is a prime.

It is a super-2 number, since 2×12136541563² (a number of 21 digits) contains 22 as substring.

Together with 12136541561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12136541561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6068270781 + 6068270782.

It is an arithmetic number, because the mean of its divisors is an integer number (6068270782).

Almost surely, 2^12136541563 is an apocalyptic number.

12136541563 is a deficient number, since it is larger than the sum of its proper divisors (1).

12136541563 is an equidigital number, since it uses as much as digits as its factorization.

12136541563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 37.

The spelling of 12136541563 in words is "twelve billion, one hundred thirty-six million, five hundred forty-one thousand, five hundred sixty-three".