A C# int is a shorthand for System.Int32, which inherits the following members from System.Object : Integer Family « Data Type « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. Data Type
3. Integer Family

using System;
using System.Collections.Generic;
using System.Text;


  class Program
  {
    static void Main(string[] args)
    {
      Console.WriteLine("12.GetHashCode() = {0}", 12.GetHashCode());
      Console.WriteLine("12.Equals(23) = {0}", 12.Equals(23));
      Console.WriteLine("12.ToString() = {0}", 12.ToString());
      Console.WriteLine("12.GetType() = {0}", 12.GetType());
    }

  }