13321203130121 has 2 divisors, whose sum is σ = 13321203130122. Its totient is φ = 13321203130120.

The previous prime is 13321203130061. The next prime is 13321203130177. The reversal of 13321203130121 is 12103130212331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12796395612025 + 524807518096 = 3577205^2 + 724436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13321203130121 is a prime.

It is not a weakly prime, because it can be changed into another prime (13321203130021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6660601565060 + 6660601565061.

It is an arithmetic number, because the mean of its divisors is an integer number (6660601565061).

Almost surely, 2^{13321203130121} is an apocalyptic number.

It is an amenable number.

13321203130121 is a deficient number, since it is larger than the sum of its proper divisors (1).

13321203130121 is an equidigital number, since it uses as much as digits as its factorization.

13321203130121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 13321203130121 its reverse (12103130212331), we get a palindrome (25424333342452).

The spelling of 13321203130121 in words is "thirteen trillion, three hundred twenty-one billion, two hundred three million, one hundred thirty thousand, one hundred twenty-one".