12127130 has 32 divisors (see below), whose sum is σ = 23284800. Its totient is φ = 4534272.

The previous prime is 12127109. The next prime is 12127139. The reversal of 12127130 is 3172121.

12127130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12127099 and 12127108.

It is not an unprimeable number, because it can be changed into a prime (12127139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15386 + ... + 16154.

It is an arithmetic number, because the mean of its divisors is an integer number (727650).

Almost surely, 2^12127130 is an apocalyptic number.

12127130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12127130 is a deficient number, since it is larger than the sum of its proper divisors (11157670).

12127130 is a wasteful number, since it uses less digits than its factorization.

12127130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 12127130 is about 3482.4029060406. The cubic root of 12127130 is about 229.7484963490.

Adding to 12127130 its reverse (3172121), we get a palindrome (15299251).

The spelling of 12127130 in words is "twelve million, one hundred twenty-seven thousand, one hundred thirty".