203221120103 has 4 divisors (see below), whose sum is σ = 203559259008. Its totient is φ = 202882981200.

The previous prime is 203221120043. The next prime is 203221120127. The reversal of 203221120103 is 301021122302.

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

It is a cyclic number.

It is not a de Polignac number, because 203221120103 - 2¹⁴ = 203221103719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203221020103) 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, 169068551 + ... + 169069752.

It is an arithmetic number, because the mean of its divisors is an integer number (50889814752).

Almost surely, 2^203221120103 is an apocalyptic number.

203221120103 is a deficient number, since it is larger than the sum of its proper divisors (338138905).

203221120103 is an equidigital number, since it uses as much as digits as its factorization.

203221120103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338138904.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 203221120103 its reverse (301021122302), we get a palindrome (504242242405).

The spelling of 203221120103 in words is "two hundred three billion, two hundred twenty-one million, one hundred twenty thousand, one hundred three".