Characteristic polynomial
$$\begin{equation}\left(\lambda + 1\right) \left(\lambda^{12} + 6 \lambda^{11} - \lambda^{10} - 720 \lambda^{9} - 5625 \lambda^{8} - 37991 \lambda^{7} - 166918 \lambda^{6} - 619079 \lambda^{5} - 1635702 \lambda^{4} - 3810566 \lambda^{3} - 5613393 \lambda^{2} - 6963340 \lambda - 4025339\right)\notag\end{equation}$$
Minimal polynomial
$$\begin{equation}\left(\lambda + 1\right) \left(\lambda^{12} + 6 \lambda^{11} - \lambda^{10} - 720 \lambda^{9} - 5625 \lambda^{8} - 37991 \lambda^{7} - 166918 \lambda^{6} - 619079 \lambda^{5} - 1635702 \lambda^{4} - 3810566 \lambda^{3} - 5613393 \lambda^{2} - 6963340 \lambda - 4025339\right)\notag\end{equation}$$
Quantum multiplication matrix
$$\begin{equation}\begin{pmatrix}0 & 0 & 2 & 2 & 3 & 12 & 9 & 18 & 12 & 8 & 12 & 12 & 40 \\ 1 & -1 & 0 & 0 & 2 & 2 & 0 & 8 & 6 & 0 & 6 & 3 & 8 \\ 1 & 1 & 0 & 2 & 0 & 0 & -2 & -4 & -4 & 6 & 3 & 6 & 0 \\ 1 & 0 & 0 & -1 & 0 & 0 & 4 & 4 & 6 & 3 & 6 & 3 & 8 \\ 0 & 1 & 2 & -2 & 0 & 2 & 0 & 2 & -3 & -6 & -4 & -8 & -6 \\ 0 & 1 & 0 & 1 & 0 & -2 & 0 & 0 & 2 & 0 & 4 & 2 & 0 \\ 0 & 2 & 1 & 0 & 0 & 2 & -1 & 0 & -1 & 2 & 2 & 4 & 6 \\ 0 & 0 & 1 & \frac{5}{2} & 0 & 1 & 0 & -1 & -\frac{1}{2} & 3 & 0 & 3 & 6 \\ 0 & 0 & 1 & 0 & 0 & 0 & 1 & 2 & 1 & 0 & 0 & 0 & 6 \\ 0 & 0 & 0 & 0 & 1 & 5 & 3 & 2 & 0 & -1 & 0 & 0 & 4 \\ 0 & 0 & 0 & 0 & 1 & \frac{11}{3} & \frac{1}{3} & \frac{14}{3} & \frac{1}{3} & 0 & -1 & 0 & \frac{4}{3} \\ 0 & 0 & 0 & 0 & 1 & -\frac{7}{3} & -\frac{2}{3} & \frac{2}{3} & \frac{10}{3} & 1 & 2 & 0 & -\frac{8}{3} \\ 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & \frac{3}{2} & \frac{5}{2} & 2 & 0\end{pmatrix}\notag\end{equation}$$