Obverse: The obverse shows part of the equation first solved by Josip Plemelj, numbers and symbols revolving in circles, illustrating the movement of the planets, connecting Plemelj's two fields of work and research, mathematics and astronomy. The coin also bears the country of issue "SLOVENIA" along with the year "2023" and the mathematician's name and date of birth "Josip Plemelj 1873".
Reverse: The reverse of the coin shows the denomination of 2 euros and depicts a map of Europe.
About the coin: The commemorative €2 coin of 2023 is intended to commemorate the 150th anniversary of the birth of the famous Slovenian mathematician Josip Plemelj.