124431423 has 4 divisors (see below), whose sum is σ = 165908568. Its totient is φ = 82954280.

The previous prime is 124431409. The next prime is 124431443. The reversal of 124431423 is 324134421.

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

It is a cyclic number.

It is not a de Polignac number, because 124431423 - 2¹² = 124427327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124431393 and 124431402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124431443) 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, 20738568 + ... + 20738573.

It is an arithmetic number, because the mean of its divisors is an integer number (41477142).

Almost surely, 2^124431423 is an apocalyptic number.

124431423 is a deficient number, since it is larger than the sum of its proper divisors (41477145).

124431423 is an equidigital number, since it uses as much as digits as its factorization.

124431423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41477144.

The product of its digits is 2304, while the sum is 24.

The square root of 124431423 is about 11154.8833700761. The cubic root of 124431423 is about 499.2407449805.

Adding to 124431423 its reverse (324134421), we get a palindrome (448565844).

The spelling of 124431423 in words is "one hundred twenty-four million, four hundred thirty-one thousand, four hundred twenty-three".