102000200173 has 2 divisors, whose sum is σ = 102000200174. Its totient is φ = 102000200172.

The previous prime is 102000200171. The next prime is 102000200221. The reversal of 102000200173 is 371002000201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90097826569 + 11902373604 = 300163^2 + 109098^2 .

It is a cyclic number.

It is not a de Polignac number, because 102000200173 - 2¹ = 102000200171 is a prime.

Together with 102000200171, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102000200171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51000100086 + 51000100087.

It is an arithmetic number, because the mean of its divisors is an integer number (51000100087).

Almost surely, 2^102000200173 is an apocalyptic number.

It is an amenable number.

102000200173 is a deficient number, since it is larger than the sum of its proper divisors (1).

102000200173 is an equidigital number, since it uses as much as digits as its factorization.

102000200173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 16.

Adding to 102000200173 its reverse (371002000201), we get a palindrome (473002200374).

The spelling of 102000200173 in words is "one hundred two billion, two hundred thousand, one hundred seventy-three".