321312021013 has 8 divisors (see below), whose sum is σ = 328168645632. Its totient is φ = 314456238096.

The previous prime is 321312021011. The next prime is 321312021061. The reversal of 321312021013 is 310120213123.

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

It is a cyclic number.

It is not a de Polignac number, because 321312021013 - 2¹ = 321312021011 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 (321312021011) 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 7 ways as a sum of consecutive naturals, for example, 593631 + ... + 997507.

It is an arithmetic number, because the mean of its divisors is an integer number (41021080704).

Almost surely, 2^321312021013 is an apocalyptic number.

It is an amenable number.

321312021013 is a deficient number, since it is larger than the sum of its proper divisors (6856624619).

321312021013 is a wasteful number, since it uses less digits than its factorization.

321312021013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420851.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 321312021013 its reverse (310120213123), we get a palindrome (631432234136).

The spelling of 321312021013 in words is "three hundred twenty-one billion, three hundred twelve million, twenty-one thousand, thirteen".