11421104200203 has 4 divisors (see below), whose sum is σ = 15228138933608. Its totient is φ = 7614069466800.

The previous prime is 11421104200151. The next prime is 11421104200241. The reversal of 11421104200203 is 30200240112411.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11421104200203 - 2⁹ = 11421104199691 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 11421104200203.

It is not an unprimeable number, because it can be changed into a prime (11421104200273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1903517366698 + ... + 1903517366703.

It is an arithmetic number, because the mean of its divisors is an integer number (3807034733402).

Almost surely, 2^{11421104200203} is an apocalyptic number.

11421104200203 is a deficient number, since it is larger than the sum of its proper divisors (3807034733405).

11421104200203 is an equidigital number, since it uses as much as digits as its factorization.

11421104200203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3807034733404.

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

Adding to 11421104200203 its reverse (30200240112411), we get a palindrome (41621344312614).

The spelling of 11421104200203 in words is "eleven trillion, four hundred twenty-one billion, one hundred four million, two hundred thousand, two hundred three".