204312130343 has 4 divisors (see below), whose sum is σ = 204439270800. Its totient is φ = 204184989888.

The previous prime is 204312130307. The next prime is 204312130391. The reversal of 204312130343 is 343031213402.

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 204312130343 - 2²⁶ = 204245021479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204312130303) 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 3 ways as a sum of consecutive naturals, for example, 63567818 + ... + 63571031.

It is an arithmetic number, because the mean of its divisors is an integer number (51109817700).

Almost surely, 2^204312130343 is an apocalyptic number.

204312130343 is a deficient number, since it is larger than the sum of its proper divisors (127140457).

204312130343 is a wasteful number, since it uses less digits than its factorization.

204312130343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127140456.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 204312130343 its reverse (343031213402), we get a palindrome (547343343745).

The spelling of 204312130343 in words is "two hundred four billion, three hundred twelve million, one hundred thirty thousand, three hundred forty-three".