20243055020 has 72 divisors (see below), whose sum is σ = 44199250368. Its totient is φ = 7787404800.

The previous prime is 20243055013. The next prime is 20243055029. The reversal of 20243055020 is 2055034202.

It is not an unprimeable number, because it can be changed into a prime (20243055029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4556000 + ... + 4560440.

Almost surely, 2^20243055020 is an apocalyptic number.

20243055020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20243055020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22099625184).

20243055020 is an abundant number, since it is smaller than the sum of its proper divisors (23956195348).

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

20243055020 is a wasteful number, since it uses less digits than its factorization.

20243055020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4779 (or 4748 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

Adding to 20243055020 its reverse (2055034202), we get a palindrome (22298089222).

The spelling of 20243055020 in words is "twenty billion, two hundred forty-three million, fifty-five thousand, twenty".