123424042 has 12 divisors (see below), whose sum is σ = 215362530. Its totient is φ = 52895976.

The previous prime is 123424039. The next prime is 123424099. The reversal of 123424042 is 240424321.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 123409881 + 14161 = 11109^2 + 119^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 629617 + ... + 629812.

Almost surely, 2^123424042 is an apocalyptic number.

123424042 is a deficient number, since it is larger than the sum of its proper divisors (91938488).

123424042 is a wasteful number, since it uses less digits than its factorization.

123424042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259445 (or 1259438 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 123424042 is about 11109.6373478165. The cubic root of 123424042 is about 497.8898295563.

Adding to 123424042 its reverse (240424321), we get a palindrome (363848363).

It can be divided in two parts, 12342 and 4042, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 123424042 in words is "one hundred twenty-three million, four hundred twenty-four thousand, forty-two".