12838678123 has 8 divisors (see below), whose sum is σ = 12939540192. Its totient is φ = 12737919936.

The previous prime is 12838678121. The next prime is 12838678169. The reversal of 12838678123 is 32187683821.

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

It is a cyclic number.

It is not a de Polignac number, because 12838678123 - 2¹ = 12838678121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12838678121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232186 + ... + 282112.

It is an arithmetic number, because the mean of its divisors is an integer number (1617442524).

Almost surely, 2^12838678123 is an apocalyptic number.

12838678123 is a deficient number, since it is larger than the sum of its proper divisors (100862069).

12838678123 is a wasteful number, since it uses less digits than its factorization.

12838678123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51941.

The product of its digits is 774144, while the sum is 49.

The spelling of 12838678123 in words is "twelve billion, eight hundred thirty-eight million, six hundred seventy-eight thousand, one hundred twenty-three".