12303143 has 8 divisors (see below), whose sum is σ = 12755712. Its totient is φ = 11858616.

The previous prime is 12303139. The next prime is 12303149. The reversal of 12303143 is 34130321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12303143 - 2² = 12303139 is a prime.

It is a Duffinian number.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1196 + ... + 5102.

It is an arithmetic number, because the mean of its divisors is an integer number (1594464).

Almost surely, 2^12303143 is an apocalyptic number.

12303143 is a deficient number, since it is larger than the sum of its proper divisors (452569).

12303143 is an equidigital number, since it uses as much as digits as its factorization.

12303143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4021.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 12303143 is about 3507.5836411980. The cubic root of 12303143 is about 230.8546839399.

Adding to 12303143 its reverse (34130321), we get a palindrome (46433464).

The spelling of 12303143 in words is "twelve million, three hundred three thousand, one hundred forty-three".