12403043023 has 24 divisors (see below), whose sum is σ = 15162675792. Its totient is φ = 10103232384.

The previous prime is 12403043017. The next prime is 12403043047. The reversal of 12403043023 is 32034030421.

It is a happy number.

It is not a de Polignac number, because 12403043023 - 2⁹ = 12403042511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12403042985 and 12403043003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12403043063) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1590 + ... + 157507.

It is an arithmetic number, because the mean of its divisors is an integer number (631778158).

Almost surely, 2^12403043023 is an apocalyptic number.

12403043023 is a deficient number, since it is larger than the sum of its proper divisors (2759632769).

12403043023 is a wasteful number, since it uses less digits than its factorization.

12403043023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159191 (or 159184 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 12403043023 its reverse (32034030421), we get a palindrome (44437073444).

The spelling of 12403043023 in words is "twelve billion, four hundred three million, forty-three thousand, twenty-three".