20020043404100 has 288 divisors, whose sum is σ = 45243704217600. Its totient is φ = 7684929280000.

The previous prime is 20020043404093. The next prime is 20020043404103. The reversal of 20020043404100 is 140434002002.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (20020043404103) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 23861791481 + ... + 23861792319.

It is an arithmetic number, because the mean of its divisors is an integer number (157096195200).

Almost surely, 2^{20020043404100} is an apocalyptic number.

20020043404100 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 20020043404100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22621852108800).

20020043404100 is an abundant number, since it is smaller than the sum of its proper divisors (25223660813500).

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

20020043404100 is a wasteful number, since it uses less digits than its factorization.

20020043404100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443 (or 1436 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20020043404100 its reverse (140434002002), we get a palindrome (20160477406102).

The spelling of 20020043404100 in words is "twenty trillion, twenty billion, forty-three million, four hundred four thousand, one hundred".