12116131804 has 36 divisors (see below), whose sum is σ = 24677377536. Its totient is φ = 5190018624.

The previous prime is 12116131799. The next prime is 12116131817. The reversal of 12116131804 is 40813161121.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 404389 + ... + 433315.

Almost surely, 2^12116131804 is an apocalyptic number.

12116131804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12116131804 is an abundant number, since it is smaller than the sum of its proper divisors (12561245732).

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

12116131804 is a wasteful number, since it uses less digits than its factorization.

12116131804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31082 (or 31073 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

Adding to 12116131804 its reverse (40813161121), we get a palindrome (52929292925).

The spelling of 12116131804 in words is "twelve billion, one hundred sixteen million, one hundred thirty-one thousand, eight hundred four".