Satoshi is holding 1,000,000 Bitcoins which if you multiplied it to its current price right now which is ~$64,000, it will be around 64 Billion Dollars. Almost 3 times as much as Elon Musk is. If only we know Satoshi then we might see him on the top of that but it will remain as a fantasy.
Lol, I think you misunderstood what was said there.
The op is saying that Elon Musk added extra $23 billion to his wealth, and is as rich as Bill Gates and Warren Buffett combined together, not that his worth is only $23 billion; currently he is worth over $200 billion. If Satoshi Nakamoto happens to be on that list, he’s not going to make the top ten list of the world’s richest people, rather he would be somewhere around the top twenty list.
The least on the top ten is worth over $100 billion dollars. I would put Satoshi around 16th on the list of the richest people. But that’s still a good position, and in the future he’s likely to be worth more than this as the value of Bitcoin will keep increasing in future.
No, that's not what OP was trying to say.

The news was taken from CNBC's site, and the title was "Elon Musk is now worth $230 billion—as much as Bill Gates and Warren Buffett combined." OP just just cut one zero off when making the screenshot. It's funny that the wrong number was refered to several times by different people in this thread, and even some conclusions were made.
To avoid something like this in the future, I would suggest to never trust what you read on the Internet from the first sight. Spend 2 seconds to google it.