204135430043 has 2 divisors, whose sum is σ = 204135430044. Its totient is φ = 204135430042.

The previous prime is 204135430003. The next prime is 204135430049. The reversal of 204135430043 is 340034531402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204135430043 - 2¹⁰ = 204135429019 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 204135429988 and 204135430015.

It is not a weakly prime, because it can be changed into another prime (204135430049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102067715021 + 102067715022.

It is an arithmetic number, because the mean of its divisors is an integer number (102067715022).

Almost surely, 2^204135430043 is an apocalyptic number.

204135430043 is a deficient number, since it is larger than the sum of its proper divisors (1).

204135430043 is an equidigital number, since it uses as much as digits as its factorization.

204135430043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 204135430043 its reverse (340034531402), we get a palindrome (544169961445).

The spelling of 204135430043 in words is "two hundred four billion, one hundred thirty-five million, four hundred thirty thousand, forty-three".