12544135412 has 12 divisors (see below), whose sum is σ = 21953893920. Its totient is φ = 6271594296.

The previous prime is 12544135411. The next prime is 12544135427. The reversal of 12544135412 is 21453144521.

12544135412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×12544135412³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12544135411) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 54962 + ... + 167657.

It is an arithmetic number, because the mean of its divisors is an integer number (1829491160).

Almost surely, 2^12544135412 is an apocalyptic number.

It is an amenable number.

12544135412 is a deficient number, since it is larger than the sum of its proper divisors (9409758508).

12544135412 is a wasteful number, since it uses less digits than its factorization.

12544135412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236710 (or 236708 counting only the distinct ones).

The product of its digits is 19200, while the sum is 32.

Adding to 12544135412 its reverse (21453144521), we get a palindrome (33997279933).

The spelling of 12544135412 in words is "twelve billion, five hundred forty-four million, one hundred thirty-five thousand, four hundred twelve".