12328143 has 16 divisors (see below), whose sum is σ = 16934016. Its totient is φ = 7973280.

The previous prime is 12328139. The next prime is 12328157. The reversal of 12328143 is 34182321.

It is not a de Polignac number, because 12328143 - 2² = 12328139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12328133) 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, 29073 + ... + 29493.

It is an arithmetic number, because the mean of its divisors is an integer number (1058376).

Almost surely, 2^12328143 is an apocalyptic number.

12328143 is a deficient number, since it is larger than the sum of its proper divisors (4605873).

12328143 is a wasteful number, since it uses less digits than its factorization.

12328143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694.

The product of its digits is 1152, while the sum is 24.

The square root of 12328143 is about 3511.1455395640. The cubic root of 12328143 is about 231.0109438042.

The spelling of 12328143 in words is "twelve million, three hundred twenty-eight thousand, one hundred forty-three".