203213103103 has 4 divisors (see below), whose sum is σ = 203227811640. Its totient is φ = 203198394568.

The previous prime is 203213103047. The next prime is 203213103127. The reversal of 203213103103 is 301301312302.

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 203213103103 - 2²⁹ = 202676232191 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 (203213133103) 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, 7333525 + ... + 7361182.

It is an arithmetic number, because the mean of its divisors is an integer number (50806952910).

Almost surely, 2^203213103103 is an apocalyptic number.

203213103103 is a deficient number, since it is larger than the sum of its proper divisors (14708537).

203213103103 is a wasteful number, since it uses less digits than its factorization.

203213103103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14708536.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 203213103103 its reverse (301301312302), we get a palindrome (504514415405).

The spelling of 203213103103 in words is "two hundred three billion, two hundred thirteen million, one hundred three thousand, one hundred three".