13321011399947 has 2 divisors, whose sum is σ = 13321011399948. Its totient is φ = 13321011399946.

The previous prime is 13321011399931. The next prime is 13321011400007. The reversal of 13321011399947 is 74999311012331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13321011399947 - 2⁴ = 13321011399931 is a prime.

It is not a weakly prime, because it can be changed into another prime (13321011399347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6660505699973 + 6660505699974.

It is an arithmetic number, because the mean of its divisors is an integer number (6660505699974).

Almost surely, 2^{13321011399947} is an apocalyptic number.

13321011399947 is a deficient number, since it is larger than the sum of its proper divisors (1).

13321011399947 is an equidigital number, since it uses as much as digits as its factorization.

13321011399947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1102248, while the sum is 53.

The spelling of 13321011399947 in words is "thirteen trillion, three hundred twenty-one billion, eleven million, three hundred ninety-nine thousand, nine hundred forty-seven".