204304220423 has 48 divisors (see below), whose sum is σ = 226071142560. Its totient is φ = 183900616704.

The previous prime is 204304220387. The next prime is 204304220431. The reversal of 204304220423 is 324022403402.

It is a happy number.

It is not a de Polignac number, because 204304220423 - 2¹² = 204304216327 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204304220392 and 204304220401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204301220423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1180949165 + ... + 1180949337.

It is an arithmetic number, because the mean of its divisors is an integer number (4709815470).

Almost surely, 2^204304220423 is an apocalyptic number.

204304220423 is a deficient number, since it is larger than the sum of its proper divisors (21766922137).

204304220423 is a wasteful number, since it uses less digits than its factorization.

204304220423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 204304220423 its reverse (324022403402), we get a palindrome (528326623825).

The spelling of 204304220423 in words is "two hundred four billion, three hundred four million, two hundred twenty thousand, four hundred twenty-three".