2023 is the only number that is equal to the sum of its digits multiplied by the square of the sum of the squares of its digits, where the sum of its digits and the sum of the squares of its digits are also its prime factors. #HappyNewYear #HappyNew  

(2+0+2+3)²⁺⁰⁺²⁺³ ≡ 2023 mod (2+0+2+3)! Or to put it another way, the remainder of (2+0+2+3)²⁺⁰⁺²⁺³ ÷ (2+0+2+3)! is 2023. #HappyNewYear #HappyNewYear2023