204542520203 has 24 divisors (see below), whose sum is σ = 246183266304. Its totient is φ = 169272406800.

The previous prime is 204542520199. The next prime is 204542520211. The reversal of 204542520203 is 302025245402.

It is not a de Polignac number, because 204542520203 - 2² = 204542520199 is a prime.

It is a super-2 number, since 2×204542520203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204542520223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 498476 + ... + 810902.

It is an arithmetic number, because the mean of its divisors is an integer number (10257636096).

Almost surely, 2^204542520203 is an apocalyptic number.

204542520203 is a deficient number, since it is larger than the sum of its proper divisors (41640746101).

204542520203 is a wasteful number, since it uses less digits than its factorization.

204542520203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312903 (or 312896 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 29.

Adding to 204542520203 its reverse (302025245402), we get a palindrome (506567765605).

The spelling of 204542520203 in words is "two hundred four billion, five hundred forty-two million, five hundred twenty thousand, two hundred three".