320301023221 has 4 divisors (see below), whose sum is σ = 320302627200. Its totient is φ = 320299419244.

The previous prime is 320301023209. The next prime is 320301023261. The reversal of 320301023221 is 122320103023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 320301023221 - 2¹⁵ = 320300990453 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 (320301023261) 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, 451351 + ... + 918868.

It is an arithmetic number, because the mean of its divisors is an integer number (80075656800).

Almost surely, 2^320301023221 is an apocalyptic number.

It is an amenable number.

320301023221 is a deficient number, since it is larger than the sum of its proper divisors (1603979).

320301023221 is a wasteful number, since it uses less digits than its factorization.

320301023221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603978.

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

Adding to 320301023221 its reverse (122320103023), we get a palindrome (442621126244).

The spelling of 320301023221 in words is "three hundred twenty billion, three hundred one million, twenty-three thousand, two hundred twenty-one".