132

132 = 2² x 3 x 11.

The sum of all two-digit numbers that you can make from 132 is 132: 12 + 13 + 21 + 23 + 31 + 32 = 132. It is the smallest number with this property.

132 is the sixth Catalan number.

132 is a divisor of 23² - 1.

The game board for Indian snakes and ladders (Moksha Patamu) has 132 squares.

Source: Number Gossip