12423441143 has 4 divisors (see below), whose sum is σ = 12435633960. Its totient is φ = 12411248328.

The previous prime is 12423441131. The next prime is 12423441181. The reversal of 12423441143 is 34114432421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34114432421 = 59 ⋅578210719.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12423441143 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 (12423441193) 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, 6094880 + ... + 6096917.

It is an arithmetic number, because the mean of its divisors is an integer number (3108908490).

Almost surely, 2^12423441143 is an apocalyptic number.

12423441143 is a deficient number, since it is larger than the sum of its proper divisors (12192817).

12423441143 is a wasteful number, since it uses less digits than its factorization.

12423441143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12192816.

The product of its digits is 9216, while the sum is 29.

Adding to 12423441143 its reverse (34114432421), we get a palindrome (46537873564).

The spelling of 12423441143 in words is "twelve billion, four hundred twenty-three million, four hundred forty-one thousand, one hundred forty-three".