320022331002 has 64 divisors (see below), whose sum is σ = 792318412800. Its totient is φ = 94913126640.

The previous prime is 320022330989. The next prime is 320022331007. The reversal of 320022331002 is 200133220023.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (320022331007) 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 31 ways as a sum of consecutive naturals, for example, 5703552 + ... + 5759387.

It is an arithmetic number, because the mean of its divisors is an integer number (12379975200).

Almost surely, 2^320022331002 is an apocalyptic number.

320022331002 is an abundant number, since it is smaller than the sum of its proper divisors (472296081798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320022331002 is a wasteful number, since it uses less digits than its factorization.

320022331002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11463008 (or 11463002 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 320022331002 its reverse (200133220023), we get a palindrome (520155551025).

The spelling of 320022331002 in words is "three hundred twenty billion, twenty-two million, three hundred thirty-one thousand, two".