12105605333863 has 2 divisors, whose sum is σ = 12105605333864. Its totient is φ = 12105605333862.

The previous prime is 12105605333761. The next prime is 12105605334037. The reversal of 12105605333863 is 36833350650121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12105605333863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12105605333363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6052802666931 + 6052802666932.

It is an arithmetic number, because the mean of its divisors is an integer number (6052802666932).

Almost surely, 2^{12105605333863} is an apocalyptic number.

12105605333863 is a deficient number, since it is larger than the sum of its proper divisors (1).

12105605333863 is an equidigital number, since it uses as much as digits as its factorization.

12105605333863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166400, while the sum is 46.

Adding to 12105605333863 its reverse (36833350650121), we get a palindrome (48938955983984).

The spelling of 12105605333863 in words is "twelve trillion, one hundred five billion, six hundred five million, three hundred thirty-three thousand, eight hundred sixty-three".