204230340012321 has 16 divisors (see below), whose sum is σ = 345786819068800. Its totient is φ = 116703051435504.

The previous prime is 204230340012299. The next prime is 204230340012337. The reversal of 204230340012321 is 123210043032402.

204230340012321 is a `hidden beast` number, since 2 + 0 + 4 + 23 + 0 + 3 + 400 + 1 + 232 + 1 = 666.

It is not a de Polignac number, because 204230340012321 - 2¹³ = 204230340004129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204230340012221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 540291904606 + ... + 540291904983.

It is an arithmetic number, because the mean of its divisors is an integer number (21611676191800).

Almost surely, 2^{204230340012321} is an apocalyptic number.

204230340012321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

204230340012321 is a deficient number, since it is larger than the sum of its proper divisors (141556479056479).

204230340012321 is a wasteful number, since it uses less digits than its factorization.

204230340012321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080583809605 (or 1080583809599 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 204230340012321 its reverse (123210043032402), we get a palindrome (327440383044723).

The spelling of 204230340012321 in words is "two hundred four trillion, two hundred thirty billion, three hundred forty million, twelve thousand, three hundred twenty-one".