123424243 has 4 divisors (see below), whose sum is σ = 124050960. Its totient is φ = 122797528.

The previous prime is 123424241. The next prime is 123424271. The reversal of 123424243 is 342424321.

It is a happy number.

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 123424243 - 2¹ = 123424241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123424241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313063 + ... + 313456.

It is an arithmetic number, because the mean of its divisors is an integer number (31012740).

Almost surely, 2^123424243 is an apocalyptic number.

123424243 is a deficient number, since it is larger than the sum of its proper divisors (626717).

123424243 is an equidigital number, since it uses as much as digits as its factorization.

123424243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626716.

The product of its digits is 4608, while the sum is 25.

The square root of 123424243 is about 11109.6463940127. The cubic root of 123424243 is about 497.8900998327.

Adding to 123424243 its reverse (342424321), we get a palindrome (465848564).

The spelling of 123424243 in words is "one hundred twenty-three million, four hundred twenty-four thousand, two hundred forty-three".