321230030221 has 16 divisors (see below), whose sum is σ = 326802124800. Its totient is φ = 315681640560.

The previous prime is 321230030213. The next prime is 321230030239. The reversal of 321230030221 is 122030032123.

It is a cyclic number.

It is not a de Polignac number, because 321230030221 - 2³ = 321230030213 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 (321230030201) 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 15 ways as a sum of consecutive naturals, for example, 98203816 + ... + 98207086.

It is an arithmetic number, because the mean of its divisors is an integer number (20425132800).

Almost surely, 2^321230030221 is an apocalyptic number.

It is an amenable number.

321230030221 is a deficient number, since it is larger than the sum of its proper divisors (5572094579).

321230030221 is a wasteful number, since it uses less digits than its factorization.

321230030221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6384.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 321230030221 its reverse (122030032123), we get a palindrome (443260062344).

The spelling of 321230030221 in words is "three hundred twenty-one billion, two hundred thirty million, thirty thousand, two hundred twenty-one".