12134352787 has 4 divisors (see below), whose sum is σ = 12151468240. Its totient is φ = 12117237336.

The previous prime is 12134352779. The next prime is 12134352799. The reversal of 12134352787 is 78725343121.

12134352787 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78725343121 = 797 ⋅98777093.

It is a cyclic number.

It is not a de Polignac number, because 12134352787 - 2³ = 12134352779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12134352187) 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, 8556663 + ... + 8558080.

It is an arithmetic number, because the mean of its divisors is an integer number (3037867060).

Almost surely, 2^12134352787 is an apocalyptic number.

12134352787 is a deficient number, since it is larger than the sum of its proper divisors (17115453).

12134352787 is an equidigital number, since it uses as much as digits as its factorization.

12134352787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17115452.

The product of its digits is 282240, while the sum is 43.

The spelling of 12134352787 in words is "twelve billion, one hundred thirty-four million, three hundred fifty-two thousand, seven hundred eighty-seven".