12012110012173 has 2 divisors, whose sum is σ = 12012110012174. Its totient is φ = 12012110012172.

The previous prime is 12012110012153. The next prime is 12012110012213. The reversal of 12012110012173 is 37121001121021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11995950009289 + 16160002884 = 3463517^2 + 127122^2 .

It is a cyclic number.

It is not a de Polignac number, because 12012110012173 - 2²¹ = 12012107915021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12012110012153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006055006086 + 6006055006087.

It is an arithmetic number, because the mean of its divisors is an integer number (6006055006087).

Almost surely, 2^{12012110012173} is an apocalyptic number.

It is an amenable number.

12012110012173 is a deficient number, since it is larger than the sum of its proper divisors (1).

12012110012173 is an equidigital number, since it uses as much as digits as its factorization.

12012110012173 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 22.

Adding to 12012110012173 its reverse (37121001121021), we get a palindrome (49133111133194).

The spelling of 12012110012173 in words is "twelve trillion, twelve billion, one hundred ten million, twelve thousand, one hundred seventy-three".