123204042424 has 16 divisors (see below), whose sum is σ = 238973358600. Its totient is φ = 59477813472.

The previous prime is 123204042397. The next prime is 123204042449. The reversal of 123204042424 is 424240402321.

It is a super-2 number, since 2×123204042424² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123204042392 and 123204042401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265525722 + ... + 265526185.

Almost surely, 2^123204042424 is an apocalyptic number.

It is an amenable number.

123204042424 is a deficient number, since it is larger than the sum of its proper divisors (115769316176).

123204042424 is a wasteful number, since it uses less digits than its factorization.

123204042424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531051942 (or 531051938 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 123204042424 its reverse (424240402321), we get a palindrome (547444444745).

The spelling of 123204042424 in words is "one hundred twenty-three billion, two hundred four million, forty-two thousand, four hundred twenty-four".