320001323311120 has 80 divisors (see below), whose sum is σ = 814091804521920. Its totient is φ = 116012564236800.

The previous prime is 320001323311037. The next prime is 320001323311129. The reversal of 320001323311120 is 21113323100023.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 320001323311091 and 320001323311100.

It is not an unprimeable number, because it can be changed into a prime (320001323311129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 549010635 + ... + 549593194.

It is an arithmetic number, because the mean of its divisors is an integer number (10176147556524).

Almost surely, 2^{320001323311120} is an apocalyptic number.

It is an amenable number.

320001323311120 is an abundant number, since it is smaller than the sum of its proper divisors (494090481210800).

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

320001323311120 is a wasteful number, since it uses less digits than its factorization.

320001323311120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098604184 (or 1098604178 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 320001323311120 its reverse (21113323100023), we get a palindrome (341114646411143).

The spelling of 320001323311120 in words is "three hundred twenty trillion, one billion, three hundred twenty-three million, three hundred eleven thousand, one hundred twenty".