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(another Prime Pages' Curiosity)
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+ A prime formed by concatenating the first four nonzero Fibonacci numbers in sequence. [Gupta]

+ All the residences in Primes Lane in Holton, Suffolk, England, have a prime postcode. Primes Lane leads southwards into the B1123 main road. [Croll]

+ 11/23 (November 23) is the only date containing the concatenation of two 2-digit primes that can be read as a prime number in either "month-day" or "day-month" format, i.e., 11/23 or 23/11. Note that Kinro Kansha no Hi (Labor-Thanksgiving Day) occurs on this date in Japan. [Kik]

+ The smallest nonzero prime showing three consecutive digits. [Silva]

+ The sums of the first digits, middle digits, last digits and all digits are the four single-digit primes. [Silva]

(There are 8 curios for this number that have not yet been approved by an editor.)

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