320211322 has 4 divisors (see below), whose sum is σ = 480316986. Its totient is φ = 160105660.

The previous prime is 320211251. The next prime is 320211341. The reversal of 320211322 is 223112023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 223112023 = 907 ⋅245989.

It can be written as a sum of positive squares in only one way, i.e., 208253761 + 111957561 = 14431^2 + 10581^2 .

It is a junction number, because it is equal to n+sod(n) for n = 320211296 and 320211305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80052829 + ... + 80052832.

Almost surely, 2^320211322 is an apocalyptic number.

320211322 is a deficient number, since it is larger than the sum of its proper divisors (160105664).

320211322 is a wasteful number, since it uses less digits than its factorization.

320211322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160105663.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 320211322 is about 17894.4494746276. The cubic root of 320211322 is about 684.1409103465.

Adding to 320211322 its reverse (223112023), we get a palindrome (543323345).

The spelling of 320211322 in words is "three hundred twenty million, two hundred eleven thousand, three hundred twenty-two".