23220300020 has 24 divisors (see below), whose sum is σ = 48971921544. Its totient is φ = 9248254976.

The previous prime is 23220299989. The next prime is 23220300023. The reversal of 23220300020 is 2000302232.

It can be written as a sum of positive squares in 4 ways, for example, as 442849936 + 22777450084 = 21044^2 + 150922^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23220299968 and 23220300004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23220300023) 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, 2486789 + ... + 2496108.

It is an arithmetic number, because the mean of its divisors is an integer number (2040496731).

Almost surely, 2^23220300020 is an apocalyptic number.

23220300020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23220300020 is an abundant number, since it is smaller than the sum of its proper divisors (25751621524).

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

23220300020 is a wasteful number, since it uses less digits than its factorization.

23220300020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4983139 (or 4983137 counting only the distinct ones).

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

Adding to 23220300020 its reverse (2000302232), we get a palindrome (25220602252).

The spelling of 23220300020 in words is "twenty-three billion, two hundred twenty million, three hundred thousand, twenty".