2012112173 has 2 divisors, whose sum is σ = 2012112174. Its totient is φ = 2012112172.

The previous prime is 2012112149. The next prime is 2012112233. The reversal of 2012112173 is 3712112102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1694310244 + 317801929 = 41162^2 + 17827^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2012112173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012112073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006056086 + 1006056087.

It is an arithmetic number, because the mean of its divisors is an integer number (1006056087).

Almost surely, 2^2012112173 is an apocalyptic number.

It is an amenable number.

2012112173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012112173 is an equidigital number, since it uses as much as digits as its factorization.

2012112173 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 20.

The square root of 2012112173 is about 44856.5733533002. The cubic root of 2012112173 is about 1262.4593297097.

Adding to 2012112173 its reverse (3712112102), we get a palindrome (5724224275).

The spelling of 2012112173 in words is "two billion, twelve million, one hundred twelve thousand, one hundred seventy-three".