12130543 has 4 divisors (see below), whose sum is σ = 12150760. Its totient is φ = 12110328.

The previous prime is 12130541. The next prime is 12130553. The reversal of 12130543 is 34503121.

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 12130543 - 2¹ = 12130541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12130543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12130541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9180 + ... + 10417.

It is an arithmetic number, because the mean of its divisors is an integer number (3037690).

Almost surely, 2^12130543 is an apocalyptic number.

12130543 is a deficient number, since it is larger than the sum of its proper divisors (20217).

12130543 is an equidigital number, since it uses as much as digits as its factorization.

12130543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20216.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 12130543 is about 3482.8929067659. The cubic root of 12130543 is about 229.7700474241.

Adding to 12130543 its reverse (34503121), we get a palindrome (46633664).

The spelling of 12130543 in words is "twelve million, one hundred thirty thousand, five hundred forty-three".