204534011001 has 16 divisors (see below), whose sum is σ = 291186948096. Its totient is φ = 127394286096.

The previous prime is 204534010997. The next prime is 204534011009. The reversal of 204534011001 is 100110435402.

It is not a de Polignac number, because 204534011001 - 2² = 204534010997 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (204534011009) 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 15 ways as a sum of consecutive naturals, for example, 34465185 + ... + 34471118.

It is an arithmetic number, because the mean of its divisors is an integer number (18199184256).

Almost surely, 2^204534011001 is an apocalyptic number.

It is an amenable number.

204534011001 is a deficient number, since it is larger than the sum of its proper divisors (86652937095).

204534011001 is a wasteful number, since it uses less digits than its factorization.

204534011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68936372.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 204534011001 its reverse (100110435402), we get a palindrome (304644446403).

The spelling of 204534011001 in words is "two hundred four billion, five hundred thirty-four million, eleven thousand, one".