12125170127 has 8 divisors (see below), whose sum is σ = 13859045376. Its totient is φ = 10391721912.

The previous prime is 12125170087. The next prime is 12125170171. The reversal of 12125170127 is 72107152121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12125170127 - 2¹⁰ = 12125169103 is a prime.

It is a super-2 number, since 2×12125170127² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12125170127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12125170177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43403 + ... + 161660.

It is an arithmetic number, because the mean of its divisors is an integer number (1732380672).

Almost surely, 2^12125170127 is an apocalyptic number.

12125170127 is a deficient number, since it is larger than the sum of its proper divisors (1733875249).

12125170127 is an equidigital number, since it uses as much as digits as its factorization.

12125170127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213517.

The product of its (nonzero) digits is 1960, while the sum is 29.

The spelling of 12125170127 in words is "twelve billion, one hundred twenty-five million, one hundred seventy thousand, one hundred twenty-seven".