321071035130669 has 2 divisors, whose sum is σ = 321071035130670. Its totient is φ = 321071035130668.

The previous prime is 321071035130639. The next prime is 321071035130719. The reversal of 321071035130669 is 966031530170123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 259997404069225 + 61073631061444 = 16124435^2 + 7814962^2 .

It is an emirp because it is prime and its reverse (966031530170123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 321071035130669 - 2¹² = 321071035126573 is a prime.

It is a super-2 number, since 2×321071035130669² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321071035130609) 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, 160535517565334 + 160535517565335.

It is an arithmetic number, because the mean of its divisors is an integer number (160535517565335).

Almost surely, 2^{321071035130669} is an apocalyptic number.

It is an amenable number.

321071035130669 is a deficient number, since it is larger than the sum of its proper divisors (1).

321071035130669 is an equidigital number, since it uses as much as digits as its factorization.

321071035130669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 612360, while the sum is 47.

The spelling of 321071035130669 in words is "three hundred twenty-one trillion, seventy-one billion, thirty-five million, one hundred thirty thousand, six hundred sixty-nine".