321420032241313 has 4 divisors (see below), whose sum is σ = 321763063226500. Its totient is φ = 321077001256128.

The previous prime is 321420032241227. The next prime is 321420032241323. The reversal of 321420032241313 is 313142230024123.

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 127602598161424 + 193817434079889 = 11296132^2 + 13921833^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321420032241313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321420032241323) 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 in 3 ways as a sum of consecutive naturals, for example, 171515491188 + ... + 171515493061.

It is an arithmetic number, because the mean of its divisors is an integer number (80440765806625).

Almost surely, 2^{321420032241313} is an apocalyptic number.

It is an amenable number.

321420032241313 is a deficient number, since it is larger than the sum of its proper divisors (343030985187).

321420032241313 is an equidigital number, since it uses as much as digits as its factorization.

321420032241313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343030985186.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 321420032241313 its reverse (313142230024123), we get a palindrome (634562262265436).

The spelling of 321420032241313 in words is "three hundred twenty-one trillion, four hundred twenty billion, thirty-two million, two hundred forty-one thousand, three hundred thirteen".