102102071 has 2 divisors, whose sum is σ = 102102072. Its totient is φ = 102102070.

The previous prime is 102102043. The next prime is 102102089. The reversal of 102102071 is 170201201.

It is a strong prime.

It is an emirp because it is prime and its reverse (170201201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102102071 - 2¹⁰ = 102101047 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102102041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51051035 + 51051036.

It is an arithmetic number, because the mean of its divisors is an integer number (51051036).

Almost surely, 2^102102071 is an apocalyptic number.

102102071 is a deficient number, since it is larger than the sum of its proper divisors (1).

102102071 is an equidigital number, since it uses as much as digits as its factorization.

102102071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 102102071 is about 10104.5569422909. The cubic root of 102102071 is about 467.3886735785.

Adding to 102102071 its reverse (170201201), we get a palindrome (272303272).

The spelling of 102102071 in words is "one hundred two million, one hundred two thousand, seventy-one".