204030203403 has 16 divisors (see below), whose sum is σ = 293444402720. Its totient is φ = 125352209664.

The previous prime is 204030203371. The next prime is 204030203411. The reversal of 204030203403 is 304302030402.

It is not a de Polignac number, because 204030203403 - 2⁵ = 204030203371 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204030203403.

It is not an unprimeable number, because it can be changed into a prime (204030203483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4243258 + ... + 4291071.

It is an arithmetic number, because the mean of its divisors is an integer number (18340275170).

Almost surely, 2^204030203403 is an apocalyptic number.

204030203403 is a deficient number, since it is larger than the sum of its proper divisors (89414199317).

204030203403 is a wasteful number, since it uses less digits than its factorization.

204030203403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8534958.

The product of its (nonzero) digits is 1728, while the sum is 21.

Adding to 204030203403 its reverse (304302030402), we get a palindrome (508332233805).

The spelling of 204030203403 in words is "two hundred four billion, thirty million, two hundred three thousand, four hundred three".