Prime Curios!: 10000...73003 (1000-digits)

10000...73003 (1000-digits)
(another Prime Pages' Curiosity)

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10⁹⁹⁹ + 5537073003 is the smallest 1000-digit prime with the first digit being equal to preceding gap and the last digit being equal to following gap. [Luhn and Kulsha]