13320123212117 has 2 divisors, whose sum is σ = 13320123212118. Its totient is φ = 13320123212116.

The previous prime is 13320123212087. The next prime is 13320123212173. The reversal of 13320123212117 is 71121232102331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6874013523556 + 6446109688561 = 2621834^2 + 2538919^2 .

It is a cyclic number.

It is not a de Polignac number, because 13320123212117 - 2¹⁰ = 13320123211093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13320123212117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13320123212177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6660061606058 + 6660061606059.

It is an arithmetic number, because the mean of its divisors is an integer number (6660061606059).

Almost surely, 2^{13320123212117} is an apocalyptic number.

It is an amenable number.

13320123212117 is a deficient number, since it is larger than the sum of its proper divisors (1).

13320123212117 is an equidigital number, since it uses as much as digits as its factorization.

13320123212117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

Adding to 13320123212117 its reverse (71121232102331), we get a palindrome (84441355314448).

The spelling of 13320123212117 in words is "thirteen trillion, three hundred twenty billion, one hundred twenty-three million, two hundred twelve thousand, one hundred seventeen".