320116322 has 4 divisors (see below), whose sum is σ = 480174486. Its totient is φ = 160058160.

The previous prime is 320116289. The next prime is 320116331. The reversal of 320116322 is 223611023.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 223611023 = 571 ⋅391613.

It can be written as a sum of positive squares in only one way, i.e., 215238241 + 104878081 = 14671^2 + 10241^2 .

It is a super-2 number, since 2×320116322² = 204948919221615368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320116294 and 320116303.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80029079 + ... + 80029082.

Almost surely, 2^320116322 is an apocalyptic number.

320116322 is a deficient number, since it is larger than the sum of its proper divisors (160058164).

320116322 is a wasteful number, since it uses less digits than its factorization.

320116322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160058163.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 320116322 is about 17891.7948233261. The cubic root of 320116322 is about 684.0732468896.

Adding to 320116322 its reverse (223611023), we get a palindrome (543727345).

The spelling of 320116322 in words is "three hundred twenty million, one hundred sixteen thousand, three hundred twenty-two".