An information processing apparatus includes an opening/closing mechanism in which a first casing and a second casing are hinge-connected via a hinge unit and the first casing and the second casing perform opening and closing operations via the hinge unit and a rotation mechanism in which the second casing is rotated about a twisting central axis which protrudes and contacts the hinge unit and rotatably supports the second casing, in which in a closed state where one face of the first: casing and one face of the second casing are overlapped one another, a clearance between the casings is set to have a first distance, and in another closed state where the other face of the first casing and the other face of the second casing are overlapped one another, the clearance between the casings is set to have a second distance different from the first distance.