Adding to 20000100000 its reverse (100002), we get a palindrome (20000200002).
It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
It is an unprimeable number.
Almost surely, 220000100000 is an apocalyptic number.
20000100000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
20000100000 is the 200000-th triangular number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20000100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33092569440).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20000100000 is an equidigital number, since it uses as much as digits as its factorization.
20000100000 is an odious number, because the sum of its binary digits is odd.
The spelling of 20000100000 in words is "twenty billion, one hundred thousand".