2002×2002=4008004,
2112×2112=4460544,
2332×2332=5438224,
2442×2442=5963364,
2552×2552=6512704,
2662×2662=7086244,
2772×2772=7683984,
2882×2882=8305924,
2992×2992=8952064,
3003×3003=9018009,
3113×3113=9690769,
因为所得的积符合CBDEBBC形式的只有:9018009,
所以ABBA=3003,
故答案为:3003.