13121406299 has 2 divisors, whose sum is σ = 13121406300. Its totient is φ = 13121406298.

The previous prime is 13121406283. The next prime is 13121406379. The reversal of 13121406299 is 99260412131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13121406299 - 2⁴ = 13121406283 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (13121406209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560703149 + 6560703150.

It is an arithmetic number, because the mean of its divisors is an integer number (6560703150).

Almost surely, 2^13121406299 is an apocalyptic number.

13121406299 is a deficient number, since it is larger than the sum of its proper divisors (1).

13121406299 is an equidigital number, since it uses as much as digits as its factorization.

13121406299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 13121406299 in words is "thirteen billion, one hundred twenty-one million, four hundred six thousand, two hundred ninety-nine".