212020010000173 has 2 divisors, whose sum is σ = 212020010000174. Its totient is φ = 212020010000172.

The previous prime is 212020009999997. The next prime is 212020010000243. The reversal of 212020010000173 is 371000010020212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180594545471209 + 31425464528964 = 13438547^2 + 5605842^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212020010000173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212020010000173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212020010006173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010005000086 + 106010005000087.

It is an arithmetic number, because the mean of its divisors is an integer number (106010005000087).

Almost surely, 2^{212020010000173} is an apocalyptic number.

It is an amenable number.

212020010000173 is a deficient number, since it is larger than the sum of its proper divisors (1).

212020010000173 is an equidigital number, since it uses as much as digits as its factorization.

212020010000173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 19.

Adding to 212020010000173 its reverse (371000010020212), we get a palindrome (583020020020385).

The spelling of 212020010000173 in words is "two hundred twelve trillion, twenty billion, ten million, one hundred seventy-three", and thus it is an aban number.