12013224173 has 2 divisors, whose sum is σ = 12013224174. Its totient is φ = 12013224172.

The previous prime is 12013224143. The next prime is 12013224187. The reversal of 12013224173 is 37142231021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11478551044 + 534673129 = 107138^2 + 23123^2 .

It is a cyclic number.

It is not a de Polignac number, because 12013224173 - 2⁶ = 12013224109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12013224143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006612086 + 6006612087.

It is an arithmetic number, because the mean of its divisors is an integer number (6006612087).

Almost surely, 2^12013224173 is an apocalyptic number.

It is an amenable number.

12013224173 is a deficient number, since it is larger than the sum of its proper divisors (1).

12013224173 is an equidigital number, since it uses as much as digits as its factorization.

12013224173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

Adding to 12013224173 its reverse (37142231021), we get a palindrome (49155455194).

The spelling of 12013224173 in words is "twelve billion, thirteen million, two hundred twenty-four thousand, one hundred seventy-three".