12838105423 has 16 divisors (see below), whose sum is σ = 15569068032. Its totient is φ = 10425708000.

The previous prime is 12838105411. The next prime is 12838105453. The reversal of 12838105423 is 32450183821.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12838105423 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 (12838105453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1443583 + ... + 1452448.

It is an arithmetic number, because the mean of its divisors is an integer number (973066752).

Almost surely, 2^12838105423 is an apocalyptic number.

12838105423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12838105423 is a deficient number, since it is larger than the sum of its proper divisors (2730962609).

12838105423 is a wasteful number, since it uses less digits than its factorization.

12838105423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2896086.

The product of its (nonzero) digits is 46080, while the sum is 37.

The spelling of 12838105423 in words is "twelve billion, eight hundred thirty-eight million, one hundred five thousand, four hundred twenty-three".