204123040422 has 32 divisors (see below), whose sum is σ = 477946635264. Its totient is φ = 56898408000.

The previous prime is 204123040397. The next prime is 204123040477. The reversal of 204123040422 is 224040321402.

It is a super-2 number, since 2×204123040422² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204123040392 and 204123040401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59267454 + ... + 59270897.

It is an arithmetic number, because the mean of its divisors is an integer number (14935832352).

Almost surely, 2^204123040422 is an apocalyptic number.

204123040422 is an abundant number, since it is smaller than the sum of its proper divisors (273823594842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204123040422 is a wasteful number, since it uses less digits than its factorization.

204123040422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118538404.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 204123040422 its reverse (224040321402), we get a palindrome (428163361824).

The spelling of 204123040422 in words is "two hundred four billion, one hundred twenty-three million, forty thousand, four hundred twenty-two".