12131124142 has 12 divisors (see below), whose sum is σ = 19204814016. Its totient is φ = 5746321620.

The previous prime is 12131124139. The next prime is 12131124151. The reversal of 12131124142 is 24142113121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8400334 + ... + 8401777.

It is an arithmetic number, because the mean of its divisors is an integer number (1600401168).

Almost surely, 2^12131124142 is an apocalyptic number.

12131124142 is a deficient number, since it is larger than the sum of its proper divisors (7073689874).

12131124142 is a wasteful number, since it uses less digits than its factorization.

12131124142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16802151 (or 16802132 counting only the distinct ones).

The product of its digits is 384, while the sum is 22.

Adding to 12131124142 its reverse (24142113121), we get a palindrome (36273237263).

The spelling of 12131124142 in words is "twelve billion, one hundred thirty-one million, one hundred twenty-four thousand, one hundred forty-two".