12886031231238 has 48 divisors (see below), whose sum is σ = 28374182485488. Its totient is φ = 3898487736000.

The previous prime is 12886031231237. The next prime is 12886031231279. The reversal of 12886031231238 is 83213213068821.

It is a super-2 number, since 2×12886031231238² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12886031231237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14032413 + ... + 14922488.

It is an arithmetic number, because the mean of its divisors is an integer number (591128801781).

Almost surely, 2^{12886031231238} is an apocalyptic number.

12886031231238 is an abundant number, since it is smaller than the sum of its proper divisors (15488151254250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12886031231238 is a wasteful number, since it uses less digits than its factorization.

12886031231238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28955541 (or 28955530 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The spelling of 12886031231238 in words is "twelve trillion, eight hundred eighty-six billion, thirty-one million, two hundred thirty-one thousand, two hundred thirty-eight".