1133 = 11 x 103.
1133 is 1112222 in base 3.
1133, 1135, 1137, 1139, and 1141 are all semiprimes.
1133 is a number n such that n2 is the sum of two or more consecutive squares.
1133 is the sum of three nonzero squares in exactly seven ways.
NGC 1133 is a spiral galaxy in the direction of the constellation Eridanus.
