How would you go about reading this number out loud?
Numbers are read from left to right, in groups of 3 digits.
They could be thought of as place-value houses with each house broken into hundreds, tens, and ones (see https://nzmaths.co.nz/resource/place-value-houses)
The first house is the first 3 digits from the right: ones (O), tens (T) and hundreds (H).
The second 3 digits are in the thousands house.
The third 3 digits are in the millions house.
The fourth 3 digits are in the billions house.
After this comes trillions, quadrillions and quintillions houses.
The ‘houses’ in the number should be separated by a small space (not by a comma).
The first 2 digits are in the fifth house – the trillions house.
The number is 23 trillion, 109 billion, 723 million, 424 thousand, and twenty-seven.
The photo of the sign was taken in the United States in early 2020.
The Unites States’ debt is now well over 30 trillion US dollars.