111521

Properties

Appears in sequences

• Half-quartan primes: primes of the form p = (x^4 + y^4)/2.at n=29A002646
• List of quadruplets of primes with common difference 12.at n=2A033446
• Primes with digital product = 10.at n=6A107696
• Prime numbers p of the form 10k+1 for which the quintic polynomial x^5-x-1 modulus p is factorizable into five binomials.at n=19A135842
• Primes which remain prime after reflection across a vertical line through the middle of the number (numbers are written as digital clock style numerals).at n=31A178318
• Primes of the form (2*p^2 + 1)/3 where p is a prime > 3.at n=20A362225
• a(n) is the start of the first occurrence of exactly n consecutive zeroless primes (A038618).at n=42A384793
• Prime numbersat n=10578