12856311 has 12 divisors (see below), whose sum is σ = 19998888. Its totient is φ = 7911504.

The previous prime is 12856273. The next prime is 12856321. The reversal of 12856311 is 11365821.

12856311 is a `hidden beast` number, since 1 + 28 + 5 + 631 + 1 = 666.

12856311 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12856311 - 2¹⁰ = 12855287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12856321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54825 + ... + 55058.

It is an arithmetic number, because the mean of its divisors is an integer number (1666574).

Almost surely, 2^12856311 is an apocalyptic number.

12856311 is a deficient number, since it is larger than the sum of its proper divisors (7142577).

12856311 is a wasteful number, since it uses less digits than its factorization.

12856311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109902 (or 109899 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 12856311 is about 3585.5698291903. The cubic root of 12856311 is about 234.2639471753.

The spelling of 12856311 in words is "twelve million, eight hundred fifty-six thousand, three hundred eleven".