200202312012173 has 2 divisors, whose sum is σ = 200202312012174. Its totient is φ = 200202312012172.

The previous prime is 200202312012127. The next prime is 200202312012187. The reversal of 200202312012173 is 371210213202002.

200202312012173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165563754996964 + 34638557015209 = 12867158^2 + 5885453^2 .

It is a cyclic number.

It is not a de Polignac number, because 200202312012173 - 2⁸ = 200202312011917 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200202312018173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100101156006086 + 100101156006087.

It is an arithmetic number, because the mean of its divisors is an integer number (100101156006087).

Almost surely, 2^{200202312012173} is an apocalyptic number.

It is an amenable number.

200202312012173 is a deficient number, since it is larger than the sum of its proper divisors (1).

200202312012173 is an equidigital number, since it uses as much as digits as its factorization.

200202312012173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

Adding to 200202312012173 its reverse (371210213202002), we get a palindrome (571412525214175).

The spelling of 200202312012173 in words is "two hundred trillion, two hundred two billion, three hundred twelve million, twelve thousand, one hundred seventy-three".