204003001043 has 4 divisors (see below), whose sum is σ = 204134702400. Its totient is φ = 203871299688.

The previous prime is 204003000983. The next prime is 204003001057. The reversal of 204003001043 is 340100300402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340100300402 = 2 ⋅170050150201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204003001043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204003001093) 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, 65848355 + ... + 65851452.

It is an arithmetic number, because the mean of its divisors is an integer number (51033675600).

Almost surely, 2^204003001043 is an apocalyptic number.

204003001043 is a deficient number, since it is larger than the sum of its proper divisors (131701357).

204003001043 is a wasteful number, since it uses less digits than its factorization.

204003001043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131701356.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 204003001043 its reverse (340100300402), we get a palindrome (544103301445).

The spelling of 204003001043 in words is "two hundred four billion, three million, one thousand, forty-three".