12131340124 has 6 divisors (see below), whose sum is σ = 21229845224. Its totient is φ = 6065670060.

The previous prime is 12131340121. The next prime is 12131340157. The reversal of 12131340124 is 42104313121.

It is a junction number, because it is equal to n+sod(n) for n = 12131340095 and 12131340104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131340121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1516417512 + ... + 1516417519.

Almost surely, 2^12131340124 is an apocalyptic number.

It is an amenable number.

12131340124 is a deficient number, since it is larger than the sum of its proper divisors (9098505100).

12131340124 is a wasteful number, since it uses less digits than its factorization.

12131340124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3032835035 (or 3032835033 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12131340124 its reverse (42104313121), we get a palindrome (54235653245).

The spelling of 12131340124 in words is "twelve billion, one hundred thirty-one million, three hundred forty thousand, one hundred twenty-four".