When Sbiis Saibian was young, he called this number centillionillion. It is the only name for a large number he came up with during his childhood. Note that "centillionillion" is not a technically accurate name for this number; logically, "centillionillion" should mean the centillionth -illion, or 103*10303+3. Sbiis Saibian himself notes this on his website.