12143303123 has 64 divisors (see below), whose sum is σ = 15770419200. Its totient is φ = 9111864960.

The previous prime is 12143303119. The next prime is 12143303143. The reversal of 12143303123 is 32130334121.

It is not a de Polignac number, because 12143303123 - 2² = 12143303119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (12143303143) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11008790 + ... + 11009892.

It is an arithmetic number, because the mean of its divisors is an integer number (246412800).

Almost surely, 2^12143303123 is an apocalyptic number.

12143303123 is a deficient number, since it is larger than the sum of its proper divisors (3627116077).

12143303123 is a wasteful number, since it uses less digits than its factorization.

12143303123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 12143303123 its reverse (32130334121), we get a palindrome (44273637244).

The spelling of 12143303123 in words is "twelve billion, one hundred forty-three million, three hundred three thousand, one hundred twenty-three".