321331041012013 has 4 divisors (see below), whose sum is σ = 321739339667200. Its totient is φ = 320922742356828.

The previous prime is 321331041012001. The next prime is 321331041012041. The reversal of 321331041012013 is 310210140133123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321331041012013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321331041012613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204149326413 + ... + 204149327986.

It is an arithmetic number, because the mean of its divisors is an integer number (80434834916800).

Almost surely, 2^{321331041012013} is an apocalyptic number.

It is an amenable number.

321331041012013 is a deficient number, since it is larger than the sum of its proper divisors (408298655187).

321331041012013 is an equidigital number, since it uses as much as digits as its factorization.

321331041012013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408298655186.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 321331041012013 its reverse (310210140133123), we get a palindrome (631541181145136).

The spelling of 321331041012013 in words is "three hundred twenty-one trillion, three hundred thirty-one billion, forty-one million, twelve thousand, thirteen".