1328196531089 has 2 divisors, whose sum is σ = 1328196531090. Its totient is φ = 1328196531088.

The previous prime is 1328196531061. The next prime is 1328196531113. The reversal of 1328196531089 is 9801356918231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1160758438225 + 167438092864 = 1077385^2 + 409192^2 .

It is an emirp because it is prime and its reverse (9801356918231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1328196531089 - 2⁸ = 1328196530833 is a prime.

It is not a weakly prime, because it can be changed into another prime (1328196536089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664098265544 + 664098265545.

It is an arithmetic number, because the mean of its divisors is an integer number (664098265545).

Almost surely, 2^{1328196531089} is an apocalyptic number.

It is an amenable number.

1328196531089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328196531089 is an equidigital number, since it uses as much as digits as its factorization.

1328196531089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2799360, while the sum is 56.

The spelling of 1328196531089 in words is "one trillion, three hundred twenty-eight billion, one hundred ninety-six million, five hundred thirty-one thousand, eighty-nine".