123424234 has 4 divisors (see below), whose sum is σ = 185136354. Its totient is φ = 61712116.

The previous prime is 123424211. The next prime is 123424241. The reversal of 123424234 is 432424321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 432424321 = 7 ⋅61774903.

It can be written as a sum of positive squares in only one way, i.e., 104960025 + 18464209 = 10245^2 + 4297^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123424199 and 123424208.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 30856057 + ... + 30856060.

Almost surely, 2^123424234 is an apocalyptic number.

123424234 is a deficient number, since it is larger than the sum of its proper divisors (61712120).

123424234 is an equidigital number, since it uses as much as digits as its factorization.

123424234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61712119.

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

The square root of 123424234 is about 11109.6459889593. The cubic root of 123424234 is about 497.8900877308.

Adding to 123424234 its reverse (432424321), we get a palindrome (555848555).

The spelling of 123424234 in words is "one hundred twenty-three million, four hundred twenty-four thousand, two hundred thirty-four".