12230143 has 4 divisors (see below), whose sum is σ = 12308200. Its totient is φ = 12152088.

The previous prime is 12230111. The next prime is 12230149. The reversal of 12230143 is 34103221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34103221 = 53 ⋅643457.

It is a cyclic number.

It is not a de Polignac number, because 12230143 - 2⁵ = 12230111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230149) 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, 38793 + ... + 39106.

It is an arithmetic number, because the mean of its divisors is an integer number (3077050).

Almost surely, 2^12230143 is an apocalyptic number.

12230143 is a deficient number, since it is larger than the sum of its proper divisors (78057).

12230143 is an equidigital number, since it uses as much as digits as its factorization.

12230143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78056.

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

The square root of 12230143 is about 3497.1621352176. The cubic root of 12230143 is about 230.3971901885.

Adding to 12230143 its reverse (34103221), we get a palindrome (46333364).

The spelling of 12230143 in words is "twelve million, two hundred thirty thousand, one hundred forty-three".