12173452503 has 8 divisors (see below), whose sum is σ = 16252714608. Its totient is φ = 8104912704.

The previous prime is 12173452483. The next prime is 12173452517. The reversal of 12173452503 is 30525437121.

12173452503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12173452503 - 2¹⁷ = 12173321431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12173452523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2677926 + ... + 2682467.

It is an arithmetic number, because the mean of its divisors is an integer number (2031589326).

Almost surely, 2^12173452503 is an apocalyptic number.

12173452503 is a deficient number, since it is larger than the sum of its proper divisors (4079262105).

12173452503 is an equidigital number, since it uses as much as digits as its factorization.

12173452503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5361153.

The product of its (nonzero) digits is 25200, while the sum is 33.

Adding to 12173452503 its reverse (30525437121), we get a palindrome (42698889624).

The spelling of 12173452503 in words is "twelve billion, one hundred seventy-three million, four hundred fifty-two thousand, five hundred three".