320221322031 has 8 divisors (see below), whose sum is σ = 459804975280. Its totient is φ = 197059275072.

The previous prime is 320221322023. The next prime is 320221322051. The reversal of 320221322031 is 130223122023.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 320221322031 - 2³ = 320221322023 is a prime.

It is a super-2 number, since 2×320221322031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320221321989 and 320221322007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320221322051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4105401526 + ... + 4105401603.

It is an arithmetic number, because the mean of its divisors is an integer number (57475621910).

Almost surely, 2^320221322031 is an apocalyptic number.

320221322031 is a deficient number, since it is larger than the sum of its proper divisors (139583653249).

320221322031 is a wasteful number, since it uses less digits than its factorization.

320221322031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8210803145.

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

Adding to 320221322031 its reverse (130223122023), we get a palindrome (450444444054).

The spelling of 320221322031 in words is "three hundred twenty billion, two hundred twenty-one million, three hundred twenty-two thousand, thirty-one".