How many numbers greater than a million can be formed with the digits 2,3,0,3,4,2,3?

No greater than 1,000,000 with digits 2,3,0,3,4,2,3.

At first place : 6 ways ( as 0 cannot come in 1st place)
At second place : 6 ways ( except the number at the first place).
similarly 5,4,3,2 ,1 ways.

Since 2 occurs twice and 3 occurs thrice repetition of numbers should be avoided.
$\mathrm{Total} \mathrm{ways} = \frac{6\times 6\times 5\times 4\times 3\times 2\times 1}{2 ! \times 3 !}=360$