It is equal to 13 kilograms approximately. Kilogram is the metric unit and pound is the imperial unit for mass. 1 Kilogram is 2.204 pounds. So we multiply pound by 0.4535 to get the equivalent kilograms.
At sea level, 1113 kg would be ~2453.74 lbs. Note that, as kg is a measure of mass, and pounds a measure of weight, this would vary by the amount of gravity (thus the disclaimer "at sea level" -- on the moon, that would be just over 400 lbs).