2120000173 has 2 divisors, whose sum is σ = 2120000174. Its totient is φ = 2120000172.

The previous prime is 2120000167. The next prime is 2120000237. The reversal of 2120000173 is 3710000212.

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., 1516167844 + 603832329 = 38938^2 + 24573^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120000173 - 2¹³ = 2119991981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120000123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060000086 + 1060000087.

It is an arithmetic number, because the mean of its divisors is an integer number (1060000087).

Almost surely, 2^2120000173 is an apocalyptic number.

It is an amenable number.

2120000173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120000173 is an equidigital number, since it uses as much as digits as its factorization.

2120000173 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.

The square root of 2120000173 is about 46043.4596115453. The cubic root of 2120000173 is about 1284.6316926561.

Adding to 2120000173 its reverse (3710000212), we get a palindrome (5830000385).

The spelling of 2120000173 in words is "two billion, one hundred twenty million, one hundred seventy-three", and thus it is an aban number.