321101562016217 has 4 divisors (see below), whose sum is σ = 322260773431716. Its totient is φ = 319942350600720.

The previous prime is 321101562016133. The next prime is 321101562016297. The reversal of 321101562016217 is 712610265101123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 107576288866201 + 213525273150016 = 10371899^2 + 14612504^2 .

It is a cyclic number.

It is not a de Polignac number, because 321101562016217 - 2¹⁰ = 321101562015193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321101562016297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579605707334 + ... + 579605707887.

It is an arithmetic number, because the mean of its divisors is an integer number (80565193357929).

Almost surely, 2^{321101562016217} is an apocalyptic number.

It is an amenable number.

321101562016217 is a deficient number, since it is larger than the sum of its proper divisors (1159211415499).

321101562016217 is a wasteful number, since it uses less digits than its factorization.

321101562016217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159211415498.

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 321101562016217 in words is "three hundred twenty-one trillion, one hundred one billion, five hundred sixty-two million, sixteen thousand, two hundred seventeen".