12540134112344 has 16 divisors (see below), whose sum is σ = 23542627903800. Its totient is φ = 6262100004672.

The previous prime is 12540134112307. The next prime is 12540134112361. The reversal of 12540134112344 is 44321143104521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 995874749 + ... + 995887340.

Almost surely, 2^{12540134112344} is an apocalyptic number.

It is an amenable number.

12540134112344 is a deficient number, since it is larger than the sum of its proper divisors (11002493791456).

12540134112344 is a wasteful number, since it uses less digits than its factorization.

12540134112344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991762882 (or 1991762878 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

Adding to 12540134112344 its reverse (44321143104521), we get a palindrome (56861277216865).

The spelling of 12540134112344 in words is "twelve trillion, five hundred forty billion, one hundred thirty-four million, one hundred twelve thousand, three hundred forty-four".