320001323012 has 48 divisors (see below), whose sum is σ = 677907014400. Its totient is φ = 129027182592.

The previous prime is 320001322969. The next prime is 320001323077. The reversal of 320001323012 is 210323100023.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1141364 + ... + 1393812.

It is an arithmetic number, because the mean of its divisors is an integer number (14123062800).

Almost surely, 2^320001323012 is an apocalyptic number.

It is an amenable number.

320001323012 is an abundant number, since it is smaller than the sum of its proper divisors (357905691388).

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

320001323012 is a wasteful number, since it uses less digits than its factorization.

320001323012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255140 (or 255138 counting only the distinct ones).

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

Adding to 320001323012 its reverse (210323100023), we get a palindrome (530324423035).

The spelling of 320001323012 in words is "three hundred twenty billion, one million, three hundred twenty-three thousand, twelve".