12147074171 has 4 divisors (see below), whose sum is σ = 12429564312. Its totient is φ = 11864584032.

The previous prime is 12147074119. The next prime is 12147074179. The reversal of 12147074171 is 17147074121.

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 12147074171 - 2²⁶ = 12079965307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12147074179) 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, 141245006 + ... + 141245091.

It is an arithmetic number, because the mean of its divisors is an integer number (3107391078).

Almost surely, 2^12147074171 is an apocalyptic number.

12147074171 is a deficient number, since it is larger than the sum of its proper divisors (282490141).

12147074171 is an equidigital number, since it uses as much as digits as its factorization.

12147074171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282490140.

The product of its (nonzero) digits is 10976, while the sum is 35.

The spelling of 12147074171 in words is "twelve billion, one hundred forty-seven million, seventy-four thousand, one hundred seventy-one".