125w is 540% of the energy of a 23w bulb. If the bulbs surface area was the same as a 23w bulb it would be around 6 times hotter than a 23w bulb. As the surface area is a bit bigger it should be around twice as hot as a smaller bulb.
Additionally any bulb larger than 40w and the lumen to watt ratio drops which means you are producing more heat per watt.