321210322321 has 12 divisors (see below), whose sum is σ = 370768208896. Its totient is φ = 272597101200.

The previous prime is 321210322259. The next prime is 321210322343. The reversal of 321210322321 is 123223012123.

It is not a de Polignac number, because 321210322321 - 2¹¹ = 321210320273 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321210322292 and 321210322301.

It is not an unprimeable number, because it can be changed into a prime (321210322361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2177745 + ... + 2320558.

Almost surely, 2^321210322321 is an apocalyptic number.

It is an amenable number.

321210322321 is a deficient number, since it is larger than the sum of its proper divisors (49557886575).

321210322321 is an equidigital number, since it uses as much as digits as its factorization.

321210322321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4498512 (or 4498411 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 321210322321 its reverse (123223012123), we get a palindrome (444433334444).

The spelling of 321210322321 in words is "three hundred twenty-one billion, two hundred ten million, three hundred twenty-two thousand, three hundred twenty-one".