204023234403 has 20 divisors (see below), whose sum is σ = 307734446448. Its totient is φ = 134694945360.

The previous prime is 204023234399. The next prime is 204023234537. The reversal of 204023234403 is 304432320402.

204023234403 is a `hidden beast` number, since 2 + 0 + 4 + 0 + 23 + 234 + 403 = 666.

It is not a de Polignac number, because 204023234403 - 2² = 204023234399 is a prime.

It is a super-2 number, since 2×204023234403² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (204023234203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12218868 + ... + 12235553.

Almost surely, 2^204023234403 is an apocalyptic number.

204023234403 is a deficient number, since it is larger than the sum of its proper divisors (103711212045).

204023234403 is a wasteful number, since it uses less digits than its factorization.

204023234403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24454536 (or 24454527 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 204023234403 its reverse (304432320402), we get a palindrome (508455554805).

The spelling of 204023234403 in words is "two hundred four billion, twenty-three million, two hundred thirty-four thousand, four hundred three".