320002113220 has 24 divisors (see below), whose sum is σ = 672032217024. Its totient is φ = 127995554016.

The previous prime is 320002113217. The next prime is 320002113227. The reversal of 320002113220 is 22311200023.

It is a junction number, because it is equal to n+sod(n) for n = 320002113194 and 320002113203.

It is not an unprimeable number, because it can be changed into a prime (320002113227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184809 + ... + 821071.

It is an arithmetic number, because the mean of its divisors is an integer number (28001342376).

Almost surely, 2^320002113220 is an apocalyptic number.

It is an amenable number.

320002113220 is an abundant number, since it is smaller than the sum of its proper divisors (352030103804).

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

320002113220 is a wasteful number, since it uses less digits than its factorization.

320002113220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661419 (or 661417 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 320002113220 its reverse (22311200023), we get a palindrome (342313313243).

The spelling of 320002113220 in words is "three hundred twenty billion, two million, one hundred thirteen thousand, two hundred twenty".