You are given a cube of diagonal 102.191 units. 

So we may compute that the side = diagonal/√3 = 59 units.

Side (or length) of the cube = 59 units. 

Total Surface area of the cube = 4 * side²

Volume of the cube = side³

Length of the diagonal of the cube = (3 * side^20.5

You might also make these calculations by considering the cube to be a special case of other 3D hexahedrons: an equilateral cuboid or a regular square prism or a square parallelopiped. 

A sphere touching all six vertices of a cube is known as its circumsphere. 

The circumsphere of this cube as a radius equal to (length of the diagonal)/2 = 51.1

Now, if we know that the cube is made of Aluminum and we measure the side in inches and the density of the material is 0.258 pounds per cubic inch, we can calculate the mass of the cube:

Mass of the cube = Density x Volume = 52987.78 pounds. 

Let's compare this current cube (let's call it cube A) with a cube B of side 1 units

The scale factor A : B = 59:1

Ratio of surface areas of A : B  = 13924: 1 = 3481 : 1 (this holds true whether you compare total surface area or surface area per side, or any corresponding pairs of surface areas between the cubes)

Ratio of volumes of A:B = 205379 : 1 = 205379 : 1

You may find some more useful notes and information about the cube over here