Portable terminal equipment as a mobile telephone includes a display device disposed with a front surface of a housing. A first touch sensor is provided in the display device. A lateral recess is formed in at least one side surface of the housing. A side touch sensor is disposed in the housing in a range including the lateral recess. Preferably, the lateral recess is constituted by plural lateral recesses formed in the one side surface. Also, a state detection device recognizes a lateral recess where contact is detected among the plural lateral recesses by use of the side touch sensor. A disabling device disables the side touch sensor from detecting contact in a lateral recess among the lateral recesses other than the lateral recess where contact is detected, for adaptation to finger operation of one of right and left hands.