320131322 has 16 divisors (see below), whose sum is σ = 549032640. Its totient is φ = 137140128.

The previous prime is 320131307. The next prime is 320131333. The reversal of 320131322 is 223131023.

It is a self number, because there is not a number n which added to its sum of digits gives 320131322.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49733 + ... + 55799.

It is an arithmetic number, because the mean of its divisors is an integer number (34314540).

Almost surely, 2^320131322 is an apocalyptic number.

320131322 is a deficient number, since it is larger than the sum of its proper divisors (228901318).

320131322 is a wasteful number, since it uses less digits than its factorization.

320131322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9845.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 320131322 is about 17892.2140049799. The cubic root of 320131322 is about 684.0839314833.

Adding to 320131322 its reverse (223131023), we get a palindrome (543262345).

The spelling of 320131322 in words is "three hundred twenty million, one hundred thirty-one thousand, three hundred twenty-two".