204211112403 has 8 divisors (see below), whose sum is σ = 272753377168. Its totient is φ = 135904794624.

The previous prime is 204211112401. The next prime is 204211112419. The reversal of 204211112403 is 304211112402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 204211112403 - 2¹ = 204211112401 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 204211112403.

It is not an unprimeable number, because it can be changed into a prime (204211112401) 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 7 ways as a sum of consecutive naturals, for example, 58984726 + ... + 58988187.

It is an arithmetic number, because the mean of its divisors is an integer number (34094172146).

Almost surely, 2^204211112403 is an apocalyptic number.

204211112403 is a deficient number, since it is larger than the sum of its proper divisors (68542264765).

204211112403 is a wasteful number, since it uses less digits than its factorization.

204211112403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117973493.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 204211112403 its reverse (304211112402), we get a palindrome (508422224805).

Subtracting 204211112403 from its reverse (304211112402), we obtain a palindrome (99999999999).

The spelling of 204211112403 in words is "two hundred four billion, two hundred eleven million, one hundred twelve thousand, four hundred three".