124320423 has 4 divisors (see below), whose sum is σ = 165760568. Its totient is φ = 82880280.

The previous prime is 124320397. The next prime is 124320433. The reversal of 124320423 is 324023421.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 124320423 - 2¹⁸ = 124058279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 124320423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124320433) 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 3 ways as a sum of consecutive naturals, for example, 20720068 + ... + 20720073.

It is an arithmetic number, because the mean of its divisors is an integer number (41440142).

Almost surely, 2^124320423 is an apocalyptic number.

124320423 is a deficient number, since it is larger than the sum of its proper divisors (41440145).

124320423 is an equidigital number, since it uses as much as digits as its factorization.

124320423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41440144.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 124320423 is about 11149.9068605975. The cubic root of 124320423 is about 499.0922503117.

Adding to 124320423 its reverse (324023421), we get a palindrome (448343844).

The spelling of 124320423 in words is "one hundred twenty-four million, three hundred twenty thousand, four hundred twenty-three".