204310043242340 has 24 divisors (see below), whose sum is σ = 490344103781952. Its totient is φ = 70049157683040.

The previous prime is 204310043242321. The next prime is 204310043242381. The reversal of 204310043242340 is 43242340013402.

It is a junction number, because it is equal to n+sod(n) for n = 204310043242297 and 204310043242306.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729678725726 + ... + 729678726005.

It is an arithmetic number, because the mean of its divisors is an integer number (20431004324248).

Almost surely, 2^{204310043242340} is an apocalyptic number.

204310043242340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204310043242340 is an abundant number, since it is smaller than the sum of its proper divisors (286034060539612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204310043242340 is a wasteful number, since it uses less digits than its factorization.

204310043242340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459357451747 (or 1459357451745 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 204310043242340 its reverse (43242340013402), we get a palindrome (247552383255742).

The spelling of 204310043242340 in words is "two hundred four trillion, three hundred ten billion, forty-three million, two hundred forty-two thousand, three hundred forty".