What is never odd or even?

Question

Find the number if:
The cipher is made of 6 different numerals.
Even and odd digits alternate, including zero (in this case as an even number).
The difference between two adjacent numerals is always greater than one (in absolute value).
The first two numerals (as one number) as well as the two middle numerals (as one number) are a multiple of the last two numerals (as one number).
What is the cipher? There is more than 1 solution.

Answer 1

The answer is a palidrome.

N-E-V-E-R O-D [] D O-R E-V-E-N

The letters forming the phrase may be symmetrically divided, with general adjustments to punctuation and word dividers.