12423271171 has 4 divisors (see below), whose sum is σ = 12424441744. Its totient is φ = 12422100600.

The previous prime is 12423271151. The next prime is 12423271177. The reversal of 12423271171 is 17117232421.

It is a happy number.

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 12423271171 - 2⁷ = 12423271043 is a prime.

It is a super-2 number, since 2×12423271171² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12423271177) 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, 569220 + ... + 590641.

It is an arithmetic number, because the mean of its divisors is an integer number (3106110436).

Almost surely, 2^12423271171 is an apocalyptic number.

12423271171 is a deficient number, since it is larger than the sum of its proper divisors (1170573).

12423271171 is a wasteful number, since it uses less digits than its factorization.

12423271171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170572.

The product of its digits is 4704, while the sum is 31.

The spelling of 12423271171 in words is "twelve billion, four hundred twenty-three million, two hundred seventy-one thousand, one hundred seventy-one".