12705207127 has 8 divisors (see below), whose sum is σ = 12831604736. Its totient is φ = 12579221592.

The previous prime is 12705207077. The next prime is 12705207161. The reversal of 12705207127 is 72170250721.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12705207127 is a prime.

It is a super-2 number, since 2×12705207127² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12705207092 and 12705207101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12705207187) 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, 40863 + ... + 164560.

It is an arithmetic number, because the mean of its divisors is an integer number (1603950592).

Almost surely, 2^12705207127 is an apocalyptic number.

12705207127 is a deficient number, since it is larger than the sum of its proper divisors (126397609).

12705207127 is a wasteful number, since it uses less digits than its factorization.

12705207127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206037.

The product of its (nonzero) digits is 13720, while the sum is 34.

Adding to 12705207127 its reverse (72170250721), we get a palindrome (84875457848).

The spelling of 12705207127 in words is "twelve billion, seven hundred five million, two hundred seven thousand, one hundred twenty-seven".