13321242033397 has 2 divisors, whose sum is σ = 13321242033398. Its totient is φ = 13321242033396.

The previous prime is 13321242033329. The next prime is 13321242033431. The reversal of 13321242033397 is 79333024212331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7092069652836 + 6229172380561 = 2663094^2 + 2495831^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13321242033397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13321242033097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6660621016698 + 6660621016699.

It is an arithmetic number, because the mean of its divisors is an integer number (6660621016699).

Almost surely, 2^{13321242033397} is an apocalyptic number.

It is an amenable number.

13321242033397 is a deficient number, since it is larger than the sum of its proper divisors (1).

13321242033397 is an equidigital number, since it uses as much as digits as its factorization.

13321242033397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 43.

The spelling of 13321242033397 in words is "thirteen trillion, three hundred twenty-one billion, two hundred forty-two million, thirty-three thousand, three hundred ninety-seven".