213002010173 has 2 divisors, whose sum is σ = 213002010174. Its totient is φ = 213002010172.

The previous prime is 213002010167. The next prime is 213002010191. The reversal of 213002010173 is 371010200312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134053373689 + 78948636484 = 366133^2 + 280978^2 .

It is a cyclic number.

It is not a de Polignac number, because 213002010173 - 2⁸ = 213002009917 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 (213002010163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106501005086 + 106501005087.

It is an arithmetic number, because the mean of its divisors is an integer number (106501005087).

Almost surely, 2^213002010173 is an apocalyptic number.

It is an amenable number.

213002010173 is a deficient number, since it is larger than the sum of its proper divisors (1).

213002010173 is an equidigital number, since it uses as much as digits as its factorization.

213002010173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 20.

Adding to 213002010173 its reverse (371010200312), we get a palindrome (584012210485).

The spelling of 213002010173 in words is "two hundred thirteen billion, two million, ten thousand, one hundred seventy-three".