12344666503 has 4 divisors (see below), whose sum is σ = 13294256248. Its totient is φ = 11395076760.

The previous prime is 12344666449. The next prime is 12344666531. The reversal of 12344666503 is 30566644321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30566644321 = 7727 ⋅3955823.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12344666503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12344616503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474794853 + ... + 474794878.

It is an arithmetic number, because the mean of its divisors is an integer number (3323564062).

Almost surely, 2^12344666503 is an apocalyptic number.

12344666503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12344666503 is a deficient number, since it is larger than the sum of its proper divisors (949589745).

12344666503 is an equidigital number, since it uses as much as digits as its factorization.

12344666503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949589744.

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 12344666503 in words is "twelve billion, three hundred forty-four million, six hundred sixty-six thousand, five hundred three".