12127869223 has 4 divisors (see below), whose sum is σ = 12546071640. Its totient is φ = 11709666808.

The previous prime is 12127869217. The next prime is 12127869227. The reversal of 12127869223 is 32296872121.

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 12127869223 - 2¹⁷ = 12127738151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12127869223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12127869227) 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, 209101165 + ... + 209101222.

It is an arithmetic number, because the mean of its divisors is an integer number (3136517910).

Almost surely, 2^12127869223 is an apocalyptic number.

12127869223 is a deficient number, since it is larger than the sum of its proper divisors (418202417).

12127869223 is an equidigital number, since it uses as much as digits as its factorization.

12127869223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418202416.

The product of its digits is 145152, while the sum is 43.

The spelling of 12127869223 in words is "twelve billion, one hundred twenty-seven million, eight hundred sixty-nine thousand, two hundred twenty-three".