Il numero 1831, milleottocentotrentuno in Italiano, in Inglese si dice one thousand eight hundred thirty-one.
Il numero ordinale 1831° in inglese si dice one thousand eight hundred thirty-first.
1822: one thousand eight hundred twenty-two
1823: one thousand eight hundred twenty-three
1824: one thousand eight hundred twenty-four
1825: one thousand eight hundred twenty-five
1826: one thousand eight hundred twenty-six
1827: one thousand eight hundred twenty-seven
1828: one thousand eight hundred twenty-eight
1829: one thousand eight hundred twenty-nine
1830: one thousand eight hundred thirty
1832: one thousand eight hundred thirty-two
1833: one thousand eight hundred thirty-three
1834: one thousand eight hundred thirty-four
1835: one thousand eight hundred thirty-five
1836: one thousand eight hundred thirty-six
1837: one thousand eight hundred thirty-seven
1838: one thousand eight hundred thirty-eight
1839: one thousand eight hundred thirty-nine
1840: one thousand eight hundred forty