A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 2113332 can be evenly divided by 1 2 3 4 6 12 13 19 23 26 31 38 39 46 52 57 62 69 76 78 92 93 114 124 138 156 186 228 247 276 299 372 403 437 494 589 598 713 741 806 874 897 988 1,178 1,196 1,209 1,311 1,426 1,482 1,612 1,748 1,767 1,794 2,139 2,356 2,418 2,622 2,852 2,964 3,534 3,588 4,278 4,836 5,244 5,681 7,068 7,657 8,556 9,269 11,362 13,547 15,314 17,043 18,538 22,724 22,971 27,094 27,807 30,628 34,086 37,076 40,641 45,942 54,188 55,614 68,172 81,282 91,884 111,228 162,564 176,111 352,222 528,333 704,444 1,056,666 and 2,113,332, with no remainder.
Since 2,113,332 cannot be divided by just 1 and 2,113,332, it is not a prime number.