Inversions
Generally found in root position, the inversion of a complete thirteenth chord including all seven notes, itself, "a rare phenomenon", is a theoretic impossible since a new thirteenth chord with a different root is produced, for example C major 13 (C-E-G-B-D-F-A) becomes e13 (E-G-B-D-F-A-C) then G13 (G-B-D-F-A-C-E), and so on, when inverted.
Read more about this topic: Thirteenth