12130423 has 4 divisors (see below), whose sum is σ = 12137400. Its totient is φ = 12123448.

The previous prime is 12130411. The next prime is 12130441. The reversal of 12130423 is 32403121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 32403121 = 29 ⋅1117349.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12130423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12130397 and 12130406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12130463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1461 + ... + 5137.

It is an arithmetic number, because the mean of its divisors is an integer number (3034350).

Almost surely, 2^12130423 is an apocalyptic number.

12130423 is a deficient number, since it is larger than the sum of its proper divisors (6977).

12130423 is an equidigital number, since it uses as much as digits as its factorization.

12130423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6976.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 12130423 is about 3482.8756796647. The cubic root of 12130423 is about 229.7692897637.

Adding to 12130423 its reverse (32403121), we get a palindrome (44533544).

The spelling of 12130423 in words is "twelve million, one hundred thirty thousand, four hundred twenty-three".