321366386713 has 8 divisors (see below), whose sum is σ = 326917211400. Its totient is φ = 315862012800.

The previous prime is 321366386699. The next prime is 321366386779. The reversal of 321366386713 is 317683663123.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 103135395609 + 218230991104 = 321147^2 + 467152^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321366386713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321366386413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11598738 + ... + 11626411.

It is an arithmetic number, because the mean of its divisors is an integer number (40864651425).

Almost surely, 2^321366386713 is an apocalyptic number.

It is an amenable number.

321366386713 is a deficient number, since it is larger than the sum of its proper divisors (5550824687).

321366386713 is a wasteful number, since it uses less digits than its factorization.

321366386713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23225387.

The product of its digits is 1959552, while the sum is 49.

The spelling of 321366386713 in words is "three hundred twenty-one billion, three hundred sixty-six million, three hundred eighty-six thousand, seven hundred thirteen".