320020230020 has 12 divisors (see below), whose sum is σ = 672042483084. Its totient is φ = 128008092000.

The previous prime is 320020229999. The next prime is 320020230041. The reversal of 320020230020 is 20032020023.

It is an interprime number because it is at equal distance from previous prime (320020229999) and next prime (320020230041).

It can be written as a sum of positive squares in 2 ways, for example, as 199351534144 + 120668695876 = 446488^2 + 347374^2 .

It is a junction number, because it is equal to n+sod(n) for n = 320020229977 and 320020230004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8000505731 + ... + 8000505770.

It is an arithmetic number, because the mean of its divisors is an integer number (56003540257).

Almost surely, 2^320020230020 is an apocalyptic number.

It is an amenable number.

320020230020 is an abundant number, since it is smaller than the sum of its proper divisors (352022253064).

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

320020230020 is a wasteful number, since it uses less digits than its factorization.

320020230020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16001011510 (or 16001011508 counting only the distinct ones).

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

Adding to 320020230020 its reverse (20032020023), we get a palindrome (340052250043).

The spelling of 320020230020 in words is "three hundred twenty billion, twenty million, two hundred thirty thousand, twenty".