12128125175147 has 4 divisors (see below), whose sum is σ = 12128303051640. Its totient is φ = 12127947298656.

The previous prime is 12128125175081. The next prime is 12128125175219. The reversal of 12128125175147 is 74157152182121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12128125175147 - 2²⁰ = 12128124126571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12128125175447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88835933 + ... + 88972350.

It is an arithmetic number, because the mean of its divisors is an integer number (3032075762910).

Almost surely, 2^{12128125175147} is an apocalyptic number.

12128125175147 is a deficient number, since it is larger than the sum of its proper divisors (177876493).

12128125175147 is an equidigital number, since it uses as much as digits as its factorization.

12128125175147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177876492.

The product of its digits is 313600, while the sum is 47.

The spelling of 12128125175147 in words is "twelve trillion, one hundred twenty-eight billion, one hundred twenty-five million, one hundred seventy-five thousand, one hundred forty-seven".