12131152312042 has 24 divisors (see below), whose sum is σ = 19333176952320. Its totient is φ = 5707865507520.

The previous prime is 12131152311979. The next prime is 12131152312177. The reversal of 12131152312042 is 24021325113121.

It is a self number, because there is not a number n which added to its sum of digits gives 12131152312042.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1951209 + ... + 5298067.

It is an arithmetic number, because the mean of its divisors is an integer number (805549039680).

Almost surely, 2^{12131152312042} is an apocalyptic number.

12131152312042 is a deficient number, since it is larger than the sum of its proper divisors (7202024640278).

12131152312042 is a wasteful number, since it uses less digits than its factorization.

12131152312042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353166 (or 3353149 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 12131152312042 its reverse (24021325113121), we get a palindrome (36152477425163).

The spelling of 12131152312042 in words is "twelve trillion, one hundred thirty-one billion, one hundred fifty-two million, three hundred twelve thousand, forty-two".