320223020 has 48 divisors (see below), whose sum is σ = 755697600. Its totient is φ = 113093376.

The previous prime is 320222957. The next prime is 320223023. The reversal of 320223020 is 20322023.

320223020 is nontrivially palindromic in base 12.

320223020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 320222986 and 320223004.

It is not an unprimeable number, because it can be changed into a prime (320223023) 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, 20795 + ... + 32754.

It is an arithmetic number, because the mean of its divisors is an integer number (15743700).

Almost surely, 2^320223020 is an apocalyptic number.

It is an amenable number.

320223020 is an abundant number, since it is smaller than the sum of its proper divisors (435474580).

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

320223020 is a wasteful number, since it uses less digits than its factorization.

320223020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53594 (or 53592 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 320223020 is about 17894.7763327738. The cubic root of 320223020 is about 684.1492412855.

Adding to 320223020 its reverse (20322023), we get a palindrome (340545043).

The spelling of 320223020 in words is "three hundred twenty million, two hundred twenty-three thousand, twenty".