12143024123 has 4 divisors (see below), whose sum is σ = 12145749408. Its totient is φ = 12140298840.

The previous prime is 12143024093. The next prime is 12143024137. The reversal of 12143024123 is 32142034121.

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 12143024123 - 2⁶ = 12143024059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12143024923) 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, 1355948 + ... + 1364873.

It is an arithmetic number, because the mean of its divisors is an integer number (3036437352).

Almost surely, 2^12143024123 is an apocalyptic number.

12143024123 is a deficient number, since it is larger than the sum of its proper divisors (2725285).

12143024123 is an equidigital number, since it uses as much as digits as its factorization.

12143024123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2725284.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12143024123 its reverse (32142034121), we get a palindrome (44285058244).

The spelling of 12143024123 in words is "twelve billion, one hundred forty-three million, twenty-four thousand, one hundred twenty-three".