12127423 has 16 divisors (see below), whose sum is σ = 15644160. Its totient is φ = 9122400.

The previous prime is 12127411. The next prime is 12127433. The reversal of 12127423 is 32472121.

It is a de Polignac number, because none of the positive numbers 2^k-12127423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12127394 and 12127403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12127403) 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, 483 + ... + 4948.

It is an arithmetic number, because the mean of its divisors is an integer number (977760).

Almost surely, 2^12127423 is an apocalyptic number.

12127423 is a deficient number, since it is larger than the sum of its proper divisors (3516737).

12127423 is a wasteful number, since it uses less digits than its factorization.

12127423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5478.

The product of its digits is 672, while the sum is 22.

The square root of 12127423 is about 3482.4449744397. Note that the first 3 decimals coincide. The cubic root of 12127423 is about 229.7503466293.

Adding to 12127423 its reverse (32472121), we get a palindrome (44599544).

The spelling of 12127423 in words is "twelve million, one hundred twenty-seven thousand, four hundred twenty-three".