12636001224013 has 4 divisors (see below), whose sum is σ = 12679127508348. Its totient is φ = 12592874939680.

The previous prime is 12636001223977. The next prime is 12636001224047. The reversal of 12636001224013 is 31042210063621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6181896540964 + 6454104683049 = 2486342^2 + 2540493^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12636001224013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12636001224073) 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 3 ways as a sum of consecutive naturals, for example, 21563141728 + ... + 21563142313.

It is an arithmetic number, because the mean of its divisors is an integer number (3169781877087).

Almost surely, 2^{12636001224013} is an apocalyptic number.

It is an amenable number.

12636001224013 is a deficient number, since it is larger than the sum of its proper divisors (43126284335).

12636001224013 is an equidigital number, since it uses as much as digits as its factorization.

12636001224013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43126284334.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 12636001224013 its reverse (31042210063621), we get a palindrome (43678211287634).

The spelling of 12636001224013 in words is "twelve trillion, six hundred thirty-six billion, one million, two hundred twenty-four thousand, thirteen".