12512000173 has 2 divisors, whose sum is σ = 12512000174. Its totient is φ = 12512000172.

The previous prime is 12512000129. The next prime is 12512000197. The reversal of 12512000173 is 37100021521.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8567908969 + 3944091204 = 92563^2 + 62802^2 .

It is an emirp because it is prime and its reverse (37100021521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12512000173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12512009173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6256000086 + 6256000087.

It is an arithmetic number, because the mean of its divisors is an integer number (6256000087).

Almost surely, 2^12512000173 is an apocalyptic number.

It is an amenable number.

12512000173 is a deficient number, since it is larger than the sum of its proper divisors (1).

12512000173 is an equidigital number, since it uses as much as digits as its factorization.

12512000173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 22.

Adding to 12512000173 its reverse (37100021521), we get a palindrome (49612021694).

The spelling of 12512000173 in words is "twelve billion, five hundred twelve million, one hundred seventy-three", and thus it is an aban number.