Adding to 1111123200 its reverse (23211111), we get a palindrome (1134334311).
It is a congruent number.
Almost surely, 21111123200 is an apocalyptic number.
1111123200 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 1111123200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2000528208).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1111123200 is a wasteful number, since it uses less digits than its factorization.
1111123200 is an evil number, because the sum of its binary digits is even.
The square root of 1111123200 is about 33333.5146661734. The cubic root of 1111123200 is about 1035.7479249365.
The spelling of 1111123200 in words is "one billion, one hundred eleven million, one hundred twenty-three thousand, two hundred".