13163606130421 has 2 divisors, whose sum is σ = 13163606130422. Its totient is φ = 13163606130420.

The previous prime is 13163606130419. The next prime is 13163606130427. The reversal of 13163606130421 is 12403160636131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12937610478321 + 225995652100 = 3596889^2 + 475390^2 .

It is an emirp because it is prime and its reverse (12403160636131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13163606130421 - 2¹ = 13163606130419 is a prime.

Together with 13163606130419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13163606130427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6581803065210 + 6581803065211.

It is an arithmetic number, because the mean of its divisors is an integer number (6581803065211).

Almost surely, 2^{13163606130421} is an apocalyptic number.

It is an amenable number.

13163606130421 is a deficient number, since it is larger than the sum of its proper divisors (1).

13163606130421 is an equidigital number, since it uses as much as digits as its factorization.

13163606130421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 37.

Adding to 13163606130421 its reverse (12403160636131), we get a palindrome (25566766766552).

The spelling of 13163606130421 in words is "thirteen trillion, one hundred sixty-three billion, six hundred six million, one hundred thirty thousand, four hundred twenty-one".