13422130121 has 2 divisors, whose sum is σ = 13422130122. Its totient is φ = 13422130120.

The previous prime is 13422130097. The next prime is 13422130151. The reversal of 13422130121 is 12103122431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9820810000 + 3601320121 = 99100^2 + 60011^2 .

It is an emirp because it is prime and its reverse (12103122431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13422130121 - 2²⁶ = 13355021257 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13422130093 and 13422130102.

It is not a weakly prime, because it can be changed into another prime (13422130151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6711065060 + 6711065061.

It is an arithmetic number, because the mean of its divisors is an integer number (6711065061).

Almost surely, 2^13422130121 is an apocalyptic number.

It is an amenable number.

13422130121 is a deficient number, since it is larger than the sum of its proper divisors (1).

13422130121 is an equidigital number, since it uses as much as digits as its factorization.

13422130121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 13422130121 its reverse (12103122431), we get a palindrome (25525252552).

The spelling of 13422130121 in words is "thirteen billion, four hundred twenty-two million, one hundred thirty thousand, one hundred twenty-one".