Donald Trump has promised he will "make heads spin" on his first day back in office on Monday, with a blitz of executive orders expected in the hours after he is sworn in as the 47th US president.

He has offered a preview of some of these yet-to-be-signed directives, saying they will target issues like illegal immigration, climate rules, diversity policies, classified documents and more.

It is common for presidents to sign a range of executive orders when they enter office.

Such orders carry the weight of law but can be overturned by subsequent presidents or the courts.