321120133289 has 2 divisors, whose sum is σ = 321120133290. Its totient is φ = 321120133288.

The previous prime is 321120133253. The next prime is 321120133307. The reversal of 321120133289 is 982331021123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 308913640000 + 12206493289 = 555800^2 + 110483^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321120133289 is a prime.

It is not a weakly prime, because it can be changed into another prime (321120133889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160560066644 + 160560066645.

It is an arithmetic number, because the mean of its divisors is an integer number (160560066645).

Almost surely, 2^321120133289 is an apocalyptic number.

It is an amenable number.

321120133289 is a deficient number, since it is larger than the sum of its proper divisors (1).

321120133289 is an equidigital number, since it uses as much as digits as its factorization.

321120133289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

The spelling of 321120133289 in words is "three hundred twenty-one billion, one hundred twenty million, one hundred thirty-three thousand, two hundred eighty-nine".