12321003173 has 2 divisors, whose sum is σ = 12321003174. Its totient is φ = 12321003172.

The previous prime is 12321003119. The next prime is 12321003203. The reversal of 12321003173 is 37130012321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8452411969 + 3868591204 = 91937^2 + 62198^2 .

It is a cyclic number.

It is not a de Polignac number, because 12321003173 - 2⁶ = 12321003109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12321000173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160501586 + 6160501587.

It is an arithmetic number, because the mean of its divisors is an integer number (6160501587).

Almost surely, 2^12321003173 is an apocalyptic number.

It is an amenable number.

12321003173 is a deficient number, since it is larger than the sum of its proper divisors (1).

12321003173 is an equidigital number, since it uses as much as digits as its factorization.

12321003173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 23.

Adding to 12321003173 its reverse (37130012321), we get a palindrome (49451015494).

The spelling of 12321003173 in words is "twelve billion, three hundred twenty-one million, three thousand, one hundred seventy-three".