204203040340043 has 16 divisors (see below), whose sum is σ = 205533708096000. Its totient is φ = 202875493423680.

The previous prime is 204203040340037. The next prime is 204203040340081. The reversal of 204203040340043 is 340043040302402.

It is a cyclic number.

It is not a de Polignac number, because 204203040340043 - 2⁶ = 204203040339979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204203040339988 and 204203040340015.

It is not an unprimeable number, because it can be changed into a prime (204203040340643) 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, 1117855448 + ... + 1118038106.

It is an arithmetic number, because the mean of its divisors is an integer number (12845856756000).

Almost surely, 2^{204203040340043} is an apocalyptic number.

204203040340043 is a deficient number, since it is larger than the sum of its proper divisors (1330667755957).

204203040340043 is a wasteful number, since it uses less digits than its factorization.

204203040340043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191162.

The product of its (nonzero) digits is 27648, while the sum is 29.

Adding to 204203040340043 its reverse (340043040302402), we get a palindrome (544246080642445).

The spelling of 204203040340043 in words is "two hundred four trillion, two hundred three billion, forty million, three hundred forty thousand, forty-three".