320111030221 has 4 divisors (see below), whose sum is σ = 336958979200. Its totient is φ = 303263081244.

The previous prime is 320111030219. The next prime is 320111030233. The reversal of 320111030221 is 122030111023.

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 320111030221 - 2¹ = 320111030219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320111030195 and 320111030204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320111030321) 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 3 ways as a sum of consecutive naturals, for example, 8423974461 + ... + 8423974498.

It is an arithmetic number, because the mean of its divisors is an integer number (84239744800).

Almost surely, 2^320111030221 is an apocalyptic number.

It is an amenable number.

320111030221 is a deficient number, since it is larger than the sum of its proper divisors (16847948979).

320111030221 is a wasteful number, since it uses less digits than its factorization.

320111030221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16847948978.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 320111030221 its reverse (122030111023), we get a palindrome (442141141244).

The spelling of 320111030221 in words is "three hundred twenty billion, one hundred eleven million, thirty thousand, two hundred twenty-one".