204320212435 has 4 divisors (see below), whose sum is σ = 245184254928. Its totient is φ = 163456169944.

The previous prime is 204320212427. The next prime is 204320212451. The reversal of 204320212435 is 534212023402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 204320212435 - 2³ = 204320212427 is a prime.

It is a Duffinian 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, 20432021239 + ... + 20432021248.

It is an arithmetic number, because the mean of its divisors is an integer number (61296063732).

Almost surely, 2^204320212435 is an apocalyptic number.

204320212435 is a deficient number, since it is larger than the sum of its proper divisors (40864042493).

204320212435 is an equidigital number, since it uses as much as digits as its factorization.

204320212435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40864042492.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 204320212435 its reverse (534212023402), we get a palindrome (738532235837).

The spelling of 204320212435 in words is "two hundred four billion, three hundred twenty million, two hundred twelve thousand, four hundred thirty-five".