12381722503 has 4 divisors (see below), whose sum is σ = 12920058288. Its totient is φ = 11843386720.

The previous prime is 12381722497. The next prime is 12381722539. The reversal of 12381722503 is 30522718321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12381722503 - 2²⁹ = 11844851591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12381792503) 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, 269167858 + ... + 269167903.

It is an arithmetic number, because the mean of its divisors is an integer number (3230014572).

Almost surely, 2^12381722503 is an apocalyptic number.

12381722503 is a deficient number, since it is larger than the sum of its proper divisors (538335785).

12381722503 is an equidigital number, since it uses as much as digits as its factorization.

12381722503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538335784.

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 12381722503 in words is "twelve billion, three hundred eighty-one million, seven hundred twenty-two thousand, five hundred three".