How do you count up to 123 in Spanish?

To count up to 123 in Spanish, you start with the numbers one to ten: uno, dos, tres, cuatro, cinco, seis, siete, ocho, nueve, diez. Then, you continue with the teens: once, doce, trece, catorce, quince, dieciséis, diecisiete, dieciocho, diecinueve, and veinte. After that, you move to the tens: veintiuno, veintidós, and so on up to thirty (treinta). Finally, you follow this pattern up to one hundred (cien) and then count from one hundred one (ciento uno) to one hundred twenty-three (ciento veintitrés).