13321309999 has 2 divisors, whose sum is σ = 13321310000. Its totient is φ = 13321309998.

The previous prime is 13321309979. The next prime is 13321310033. The reversal of 13321309999 is 99990312331.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13321309999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13321309979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6660654999 + 6660655000.

It is an arithmetic number, because the mean of its divisors is an integer number (6660655000).

Almost surely, 2^13321309999 is an apocalyptic number.

13321309999 is a deficient number, since it is larger than the sum of its proper divisors (1).

13321309999 is an equidigital number, since it uses as much as digits as its factorization.

13321309999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 354294, while the sum is 49.

The spelling of 13321309999 in words is "thirteen billion, three hundred twenty-one million, three hundred nine thousand, nine hundred ninety-nine".