Elon Musk's net worth has reportedly surpassed $1 trillion, with some outlets attributing this to SpaceX's shares going up after its initial public offering. However, there is some uncertainty about the nature of his trillionaire status, with one outlet suggesting it may only be "on paper". Musk's status as the world's first trillionaire may also be temporary, as one report indicates he held the title for just 12 days.