320022103520 has 96 divisors (see below), whose sum is σ = 868834040256. Its totient is φ = 109115596800.

The previous prime is 320022103501. The next prime is 320022103561. The reversal of 320022103520 is 25301220023.

It is a super-3 number, since 3×320022103520³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 320022103492 and 320022103501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 586601 + ... + 992040.

It is an arithmetic number, because the mean of its divisors is an integer number (9050354586).

Almost surely, 2^320022103520 is an apocalyptic number.

It is an amenable number.

320022103520 is an abundant number, since it is smaller than the sum of its proper divisors (548811936736).

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

320022103520 is a wasteful number, since it uses less digits than its factorization.

320022103520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578844 (or 1578836 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 320022103520 its reverse (25301220023), we get a palindrome (345323323543).

The spelling of 320022103520 in words is "three hundred twenty billion, twenty-two million, one hundred three thousand, five hundred twenty".