320221230321 has 8 divisors (see below), whose sum is σ = 426971412864. Its totient is φ = 213475934000.

The previous prime is 320221230319. The next prime is 320221230341. The reversal of 320221230321 is 123032122023.

It is a happy number.

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 320221230321 - 2¹ = 320221230319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320221230311) 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, 1065801 + ... + 1332806.

It is an arithmetic number, because the mean of its divisors is an integer number (53371426608).

Almost surely, 2^320221230321 is an apocalyptic number.

It is an amenable number.

320221230321 is a deficient number, since it is larger than the sum of its proper divisors (106750182543).

320221230321 is a wasteful number, since it uses less digits than its factorization.

320221230321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2443111.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 320221230321 its reverse (123032122023), we get a palindrome (443253352344).

The spelling of 320221230321 in words is "three hundred twenty billion, two hundred twenty-one million, two hundred thirty thousand, three hundred twenty-one".