Pyrillion

The pyrillion (can be called metillion) is equal to 103*10 3*10 3*10 45 +3

After pyrillion is dyrillion, tryrillion, tyrillion, peyrillion, exyrillion, zyrillion, yyrillion, nyrillion.

Etymology
"Pyrillion" does not have any clear etymology.

"Metillion" is based on the word "metaverse" and suffix "-illion".