123543213 has 8 divisors (see below), whose sum is σ = 168229248. Its totient is φ = 80609664.

The previous prime is 123543191. The next prime is 123543253. The reversal of 123543213 is 312345321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123543213 - 2⁸ = 123542957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123543253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437956 + ... + 438237.

It is an arithmetic number, because the mean of its divisors is an integer number (21028656).

Almost surely, 2^123543213 is an apocalyptic number.

It is an amenable number.

123543213 is a deficient number, since it is larger than the sum of its proper divisors (44686035).

123543213 is an equidigital number, since it uses as much as digits as its factorization.

123543213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876243.

The product of its digits is 2160, while the sum is 24.

The square root of 123543213 is about 11114.9994601889. Note that the first 3 decimals coincide. The cubic root of 123543213 is about 498.0500223942.

Adding to 123543213 its reverse (312345321), we get a palindrome (435888534).

The spelling of 123543213 in words is "one hundred twenty-three million, five hundred forty-three thousand, two hundred thirteen".