12311868 has 24 divisors (see below), whose sum is σ = 28828800. Its totient is φ = 4089520.

The previous prime is 12311857. The next prime is 12311869. The reversal of 12311868 is 86811321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2083 + ... + 5381.

It is an arithmetic number, because the mean of its divisors is an integer number (1201200).

Almost surely, 2^12311868 is an apocalyptic number.

It is an amenable number.

12311868 is an abundant number, since it is smaller than the sum of its proper divisors (16516932).

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

12311868 is a wasteful number, since it uses less digits than its factorization.

12311868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3617 (or 3615 counting only the distinct ones).

The product of its digits is 2304, while the sum is 30.

The square root of 12311868 is about 3508.8271544777. The cubic root of 12311868 is about 230.9092426590.

The spelling of 12311868 in words is "twelve million, three hundred eleven thousand, eight hundred sixty-eight".