11121823 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It is a cyclic number.
It is a self number, because there is not a number n which added to its sum of digits gives 11121823.
It is a congruent number.
Almost surely, 211121823 is an apocalyptic number.
11121823 is an equidigital number, since it uses as much as digits as its factorization.
11121823 is an evil number, because the sum of its binary digits is even.
The square root of 11121823 is about 3334.9397295903. The cubic root of 11121823 is about 223.2160025761.
Adding to 11121823 its reverse (32812111), we get a palindrome (43933934).
The spelling of 11121823 in words is "eleven million, one hundred twenty-one thousand, eight hundred twenty-three".