Full Idea
The Platonist view may be that one can state the essence of each number, without referring to the other numbers.
Gist of Idea
Platonists claim we can state the essence of a number without reference to the others
Source
Stewart Shapiro (Philosophy of Mathematics [1997], 3.1)
Book Reference
Shapiro,Stewart: 'Philosophy of Mathematics:structure and ontology' [OUP 1997], p.72
A Reaction
Frege certainly talks this way (in his 'borehole' analogy). Fine, we are asked to spell out the essence of some number, without making reference either to any 'units' composing it, or to any other number adjacent to it or composing it. Reals?