8811

8811 = 3 x 3 x 11 x 89.

8811 is a multiple of 11 containing 11 in its decimal representation (A121031).

8811 is the number of 12 x 12 binary arrays symmetric under horizontal reflection with all ones connected only in a one by five or five by one block (A145065).

8811 divides 34¹² - 1.

Source: OEIS