The Roman numeral MCCCXXIII corresponds to the Arabic number 1323.
MCCCXXIII = 1323
Symbols are written and read from left to right, from highest to lowest.
If number MCCCXXIII is within to text or sentence it should be read in its equivalent in Arabic numbers, in this case 1323.
MCCCXXII is number 1322
MCCCXXIV is number 1324
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