This number is a composite.
The number of pairs of twin primes less than 1000.
35 is the smallest product of twin primes of the form (4*k+1, 4*k+3), k>0. [Zumkeller]
The number of known even numbers which are not the sum of two twin primes (coming from the same pair or not). [Capelle]
35 can be written as a sum of odd primes in 35 ways, and as a sum of primes in 35 * 5 ways. [Hartley]
35 = 23 + 33, i.e., the sum of the cubes of the first two primes. Factor 35 and get the third and fourth primes. [Mizuki]
35 is the smallest number formed from two odd primes. It's prime factors are 5 and 7. Note that its digital sum (8) and digital product (15) are each one less than perfect squares. No prime number greater than 3 fits this category. [Storms]
The smallest concatenation of two consecutive primes divisible by the next prime. [Silva]
The smallest number formed from twin primes and equal to the product of twin primes. [Silva]
The only known number that is concatenation of two successive primes that is divisible by one of them. Are there more? [Sariyar]