123323543 has 12 divisors (see below), whose sum is σ = 144220032. Its totient is φ = 105144480.

The previous prime is 123323537. The next prime is 123323561. The reversal of 123323543 is 345323321.

It is a happy number.

It is not a de Polignac number, because 123323543 - 2¹⁰ = 123322519 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 (123323513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2771 + ... + 15947.

It is an arithmetic number, because the mean of its divisors is an integer number (12018336).

Almost surely, 2^123323543 is an apocalyptic number.

123323543 is a deficient number, since it is larger than the sum of its proper divisors (20896489).

123323543 is a wasteful number, since it uses less digits than its factorization.

123323543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13382 (or 13375 counting only the distinct ones).

The product of its digits is 6480, while the sum is 26.

The square root of 123323543 is about 11105.1133717761. The cubic root of 123323543 is about 497.7546559536.

Adding to 123323543 its reverse (345323321), we get a palindrome (468646864).

The spelling of 123323543 in words is "one hundred twenty-three million, three hundred twenty-three thousand, five hundred forty-three".