12321026636163 has 12 divisors (see below), whose sum is σ = 19110163762440. Its totient is φ = 7040586649152.

The previous prime is 12321026636161. The next prime is 12321026636179. The reversal of 12321026636163 is 36163662012321.

It is not a de Polignac number, because 12321026636163 - 2¹ = 12321026636161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12321026636161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41908253718 + ... + 41908254011.

It is an arithmetic number, because the mean of its divisors is an integer number (1592513646870).

Almost surely, 2^{12321026636163} is an apocalyptic number.

12321026636163 is a deficient number, since it is larger than the sum of its proper divisors (6789137126277).

12321026636163 is an equidigital number, since it uses as much as digits as its factorization.

12321026636163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83816507746 (or 83816507739 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 42.

Adding to 12321026636163 its reverse (36163662012321), we get a palindrome (48484688648484).

The spelling of 12321026636163 in words is "twelve trillion, three hundred twenty-one billion, twenty-six million, six hundred thirty-six thousand, one hundred sixty-three".