1328336384281 has 2 divisors, whose sum is σ = 1328336384282. Its totient is φ = 1328336384280.

The previous prime is 1328336384213. The next prime is 1328336384293. The reversal of 1328336384281 is 1824836338231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1322536800256 + 5799584025 = 1150016^2 + 76155^2 .

It is a cyclic number.

It is not a de Polignac number, because 1328336384281 - 2⁷ = 1328336384153 is a prime.

It is a super-2 number, since 2×1328336384281² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1328336384201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664168192140 + 664168192141.

It is an arithmetic number, because the mean of its divisors is an integer number (664168192141).

Almost surely, 2^{1328336384281} is an apocalyptic number.

It is an amenable number.

1328336384281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328336384281 is an equidigital number, since it uses as much as digits as its factorization.

1328336384281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3981312, while the sum is 52.

The spelling of 1328336384281 in words is "one trillion, three hundred twenty-eight billion, three hundred thirty-six million, three hundred eighty-four thousand, two hundred eighty-one".