how to write in English for $123,456. Thanks !?

One hundred twenty-three thousand and four hundred fifty-six dollars.

One hundred twenty three thousand and four hundred fifty six dollars.

We can write it as
one hundred twenty-three thousand four hundred fifty-six dollars
OR
one hundred and twenty-three thousand, four hundred and fifty-six dollars.

“AND” shouldnt be put it between thousand and four.

One hundred twenty-three thousand and four hundred fifty-six dollars only

One hundred twenty-three thousand and four hundred fifty-six dollars only.

One hundred twenty-three thousand, four hundred and fifty-six dollars only.      

            

One hundred twenty-three thousand and four hundred fifty-six dollars only

One hundred twenty-three thousand and four hundred fifty-six dollars only

one hundred twenty three thousand and four hundred fifty six 

One Hundred Twenty-Three Thousand Four Hundred Fifty-Six and 00/100.