Unless you live in an area where there was a federally-declared disaster in 2023 that qualified you to take a disaster distribution, the entire taxable amount of your 2023 401(k) distribution is includible in income on your 2023 tax return.
If you are unable to pay the taxes, you might consider a payment plan with the IRS"
https://www.irs.gov/payments/online-payment-agreement-application
