Paris Hilton doesn't have time for a boyfriend.

The 34-year-old star, who split from model River Viiperi last summer after two years of dating, says she is happily single and focusing on her career.

The blonde beauty said: ''I'm doing what I want. I don't really have time for a boyfriend. I'd rather be single.''

Paris also claims her partying days are behind her, and she only goes to clubs when she is getting paid to DJ now.

She told ''I like to see girls looking hot and having fun - that's what life's about. But I'm kinda over the whole scene. I used to love going out all the time but now it's only for DJ'ing and getting paid. Thursday is the cool night, and I have to get up and work.''

The former reality TV star's entertainment company has hundreds of employees, but she isn't surprised some people still think she's ''dumb.''

She explained: ''I was playing a character on 'The Simple Life,' so I don't blame people for thinking I was ditzy. People assumed that's who I really was. Now they meet me and realise I'm completely different. But it doesn't bother me that people thought I was dumb. Playing that character made life easier - I do have a certain amount of shyness, which I'm sure is a surprise to people. And I've never cared what people think about me - I know the truth. I've always known what I was capable of.''