12127106319 has 4 divisors (see below), whose sum is σ = 16169475096. Its totient is φ = 8084737544.

The previous prime is 12127106317. The next prime is 12127106323. The reversal of 12127106319 is 91360172121.

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 12127106319 - 2¹ = 12127106317 is a prime.

It is a super-2 number, since 2×12127106319² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12127106319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12127106311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2021184384 + ... + 2021184389.

It is an arithmetic number, because the mean of its divisors is an integer number (4042368774).

Almost surely, 2^12127106319 is an apocalyptic number.

12127106319 is a deficient number, since it is larger than the sum of its proper divisors (4042368777).

12127106319 is an equidigital number, since it uses as much as digits as its factorization.

12127106319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4042368776.

The product of its (nonzero) digits is 4536, while the sum is 33.

The spelling of 12127106319 in words is "twelve billion, one hundred twenty-seven million, one hundred six thousand, three hundred nineteen".