Il numero romano MMMMDCCCXXXI nel sistema decimale vale: 4831.
MMMMDCCCXXXI in latino si scrive quattuor milia octingenti triginta unus,
mentre in italiano quattromilaottocentotrentuno.
MMMMDCCCXII, MMMMDCCCXIII, MMMMDCCCXIV, MMMMDCCCXV, MMMMDCCCXVI, MMMMDCCCXVII, MMMMDCCCXVIII, MMMMDCCCXIX, MMMMDCCCXX, MMMMDCCCXXI, MMMMDCCCXXII, MMMMDCCCXXIII, MMMMDCCCXXIV, MMMMDCCCXXV, MMMMDCCCXXVI, MMMMDCCCXXVII, MMMMDCCCXXVIII, MMMMDCCCXXIX, MMMMDCCCXXX, MMMMDCCCXXXII, MMMMDCCCXXXIII, MMMMDCCCXXXIV, MMMMDCCCXXXV, MMMMDCCCXXXVI, MMMMDCCCXXXVII, MMMMDCCCXXXVIII, MMMMDCCCXXXIX, MMMMDCCCXL, MMMMDCCCXLI, MMMMDCCCXLII, MMMMDCCCXLIII, MMMMDCCCXLIV, MMMMDCCCXLV, MMMMDCCCXLVI, MMMMDCCCXLVII, MMMMDCCCXLVIII, MMMMDCCCXLIX, MMMMDCCCL