12938004243 has 6 divisors (see below), whose sum is σ = 18688228364. Its totient is φ = 8625336156.

The previous prime is 12938004203. The next prime is 12938004263. The reversal of 12938004243 is 34240083921.

It is not a de Polignac number, because 12938004243 - 2⁸ = 12938003987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12938004198 and 12938004207.

It is not an unprimeable number, because it can be changed into a prime (12938004203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 718778005 + ... + 718778022.

Almost surely, 2^12938004243 is an apocalyptic number.

12938004243 is a deficient number, since it is larger than the sum of its proper divisors (5750224121).

12938004243 is a wasteful number, since it uses less digits than its factorization.

12938004243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437556033 (or 1437556030 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 12938004243 in words is "twelve billion, nine hundred thirty-eight million, four thousand, two hundred forty-three".