203004540500 has 48 divisors (see below), whose sum is σ = 466696776000. Its totient is φ = 76928032800.

The previous prime is 203004540467. The next prime is 203004540587. The reversal of 203004540500 is 5045400302.

It is a super-2 number, since 2×203004540500² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10674950 + ... + 10693949.

It is an arithmetic number, because the mean of its divisors is an integer number (9722849500).

Almost surely, 2^203004540500 is an apocalyptic number.

203004540500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203004540500 is an abundant number, since it is smaller than the sum of its proper divisors (263692235500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203004540500 is a wasteful number, since it uses less digits than its factorization.

203004540500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21368937 (or 21368925 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

Adding to 203004540500 its reverse (5045400302), we get a palindrome (208049940802).

The spelling of 203004540500 in words is "two hundred three billion, four million, five hundred forty thousand, five hundred".