12124134540 has 96 divisors (see below), whose sum is σ = 43108047360. Its totient is φ = 2771229888.

The previous prime is 12124134497. The next prime is 12124134553. The reversal of 12124134540 is 4543142121.

12124134540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 31 ways as a sum of consecutive naturals, for example, 1599942 + ... + 1607501.

It is an arithmetic number, because the mean of its divisors is an integer number (449042160).

Almost surely, 2^12124134540 is an apocalyptic number.

12124134540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12124134540 is an abundant number, since it is smaller than the sum of its proper divisors (30983912820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12124134540 is a wasteful number, since it uses less digits than its factorization.

12124134540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207468 (or 3207460 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 12124134540 its reverse (4543142121), we get a palindrome (16667276661).

The spelling of 12124134540 in words is "twelve billion, one hundred twenty-four million, one hundred thirty-four thousand, five hundred forty".