12131104724 has 24 divisors (see below), whose sum is σ = 23117354400. Its totient is φ = 5548163040.

The previous prime is 12131104721. The next prime is 12131104747. The reversal of 12131104724 is 42740113121.

It is a junction number, because it is equal to n+sod(n) for n = 12131104693 and 12131104702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131104721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2749862 + ... + 2754269.

It is an arithmetic number, because the mean of its divisors is an integer number (963223100).

Almost surely, 2^12131104724 is an apocalyptic number.

It is an amenable number.

12131104724 is a deficient number, since it is larger than the sum of its proper divisors (10986249676).

12131104724 is a wasteful number, since it uses less digits than its factorization.

12131104724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5504183 (or 5504181 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 12131104724 its reverse (42740113121), we get a palindrome (54871217845).

The spelling of 12131104724 in words is "twelve billion, one hundred thirty-one million, one hundred four thousand, seven hundred twenty-four".