13968000121 has 2 divisors, whose sum is σ = 13968000122. Its totient is φ = 13968000120.

The previous prime is 13968000113. The next prime is 13968000199. The reversal of 13968000121 is 12100086931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8544414096 + 5423586025 = 92436^2 + 73645^2 .

It is a cyclic number.

It is not a de Polignac number, because 13968000121 - 2³ = 13968000113 is a prime.

It is not a weakly prime, because it can be changed into another prime (13968001121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6984000060 + 6984000061.

It is an arithmetic number, because the mean of its divisors is an integer number (6984000061).

Almost surely, 2^13968000121 is an apocalyptic number.

It is an amenable number.

13968000121 is a deficient number, since it is larger than the sum of its proper divisors (1).

13968000121 is an equidigital number, since it uses as much as digits as its factorization.

13968000121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 31.

The spelling of 13968000121 in words is "thirteen billion, nine hundred sixty-eight million, one hundred twenty-one", and thus it is an aban number.