320030300221 has 4 divisors (see below), whose sum is σ = 322473279744. Its totient is φ = 317587320700.

The previous prime is 320030300189. The next prime is 320030300231. The reversal of 320030300221 is 122003030023.

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 320030300221 - 2⁵ = 320030300189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320030300195 and 320030300204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320030300231) 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, 1221489565 + ... + 1221489826.

It is an arithmetic number, because the mean of its divisors is an integer number (80618319936).

Almost surely, 2^320030300221 is an apocalyptic number.

It is an amenable number.

320030300221 is a deficient number, since it is larger than the sum of its proper divisors (2442979523).

320030300221 is a wasteful number, since it uses less digits than its factorization.

320030300221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2442979522.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 320030300221 its reverse (122003030023), we get a palindrome (442033330244).

It can be divided in two parts, 32003030022 and 1, that added together give a palindrome (32003030023).

The spelling of 320030300221 in words is "three hundred twenty billion, thirty million, three hundred thousand, two hundred twenty-one".