321323002013 has 4 divisors (see below), whose sum is σ = 346040156028. Its totient is φ = 296605848000.

The previous prime is 321323002009. The next prime is 321323002019. The reversal of 321323002013 is 310200323123.

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 147964854244 + 173358147769 = 384662^2 + 416363^2 .

It is a cyclic number.

It is not a de Polignac number, because 321323002013 - 2² = 321323002009 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 (321323002019) 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, 12358576988 + ... + 12358577013.

It is an arithmetic number, because the mean of its divisors is an integer number (86510039007).

Almost surely, 2^321323002013 is an apocalyptic number.

It is an amenable number.

321323002013 is a deficient number, since it is larger than the sum of its proper divisors (24717154015).

321323002013 is a wasteful number, since it uses less digits than its factorization.

321323002013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24717154014.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 321323002013 its reverse (310200323123), we get a palindrome (631523325136).

The spelling of 321323002013 in words is "three hundred twenty-one billion, three hundred twenty-three million, two thousand, thirteen".