Value is either too large or too small for Type 'Int32'

i just take one object type.and then using dt.compute(formulacal).then it says error Value is either too large or too small for Type 'Int32'.If i take small values i wont get error.if i take big values then iam facing problem. object formulacal="234234234234*2342342342"; DataTable dt=new DataTable();//then i perform caluclation caluclatedvalue =dt.Compute(formulacal, ""); //here it thrown error It says Error like "Value is either too large or too small for Type 'Int32'".How can i resolve this issue