204312130401 has 4 divisors (see below), whose sum is σ = 272416173872. Its totient is φ = 136208086932.

The previous prime is 204312130397. The next prime is 204312130447. The reversal of 204312130401 is 104031213402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 204312130401 - 2² = 204312130397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204312130471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34052021731 + ... + 34052021736.

It is an arithmetic number, because the mean of its divisors is an integer number (68104043468).

Almost surely, 2^204312130401 is an apocalyptic number.

It is an amenable number.

204312130401 is a deficient number, since it is larger than the sum of its proper divisors (68104043471).

204312130401 is an equidigital number, since it uses as much as digits as its factorization.

204312130401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68104043470.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 204312130401 its reverse (104031213402), we get a palindrome (308343343803).

The spelling of 204312130401 in words is "two hundred four billion, three hundred twelve million, one hundred thirty thousand, four hundred one".