Adding to 100111100 its reverse (1111001), we get a palindrome (101222101).
Subtracting from 100111100 its reverse (1111001), we obtain a palindrome (99000099).
It is a congruent number.
It is an unprimeable number.
Almost surely, 2100111100 is an apocalyptic number.
100111100 is a gapful number since it is divisible by the number (10) 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 100111100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109240404).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
100111100 is a wasteful number, since it uses less digits than its factorization.
100111100 is an evil number, because the sum of its binary digits is even.
The square root of 100111100 is about 10005.5534579552. The cubic root of 100111100 is about 464.3307132491.
The spelling of 100111100 in words is "one hundred million, one hundred eleven thousand, one hundred".