This is one of two self-complementary, rank-3 strongly regular graphs with parameters $(961,480,239,240)$, the other being the Paley graph $P_{961}$.
Number of vertices: | $961$ |
Diameter: | $2$ |
Intersection array: | $\{480,240;1,240\}$ |
Spectrum: | $480^1 15^{480} (-16)^{480}$ |
Automorphism group: | $31^2:240:2$ |
Distance-transitive: | Yes |
Primitive |