123204424424 has 16 divisors (see below), whose sum is σ = 231063663300. Its totient is φ = 61587447552.

The previous prime is 123204424381. The next prime is 123204424459. The reversal of 123204424424 is 424424402321.

It can be written as a sum of positive squares in 2 ways, for example, as 85253488324 + 37950936100 = 291982^2 + 194810^2 .

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, 1810079 + ... + 1876910.

Almost surely, 2^123204424424 is an apocalyptic number.

It is an amenable number.

123204424424 is a deficient number, since it is larger than the sum of its proper divisors (107859238876).

123204424424 is a wasteful number, since it uses less digits than its factorization.

123204424424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3691172 (or 3691168 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 123204424424 its reverse (424424402321), we get a palindrome (547628826745).

The spelling of 123204424424 in words is "one hundred twenty-three billion, two hundred four million, four hundred twenty-four thousand, four hundred twenty-four".