203213130203 has 4 divisors (see below), whose sum is σ = 203217782208. Its totient is φ = 203208478200.

The previous prime is 203213130191. The next prime is 203213130227. The reversal of 203213130203 is 302031312302.

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 203213130203 - 2¹⁸ = 203212868059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203213130283) 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, 2259851 + ... + 2348052.

It is an arithmetic number, because the mean of its divisors is an integer number (50804445552).

Almost surely, 2^203213130203 is an apocalyptic number.

203213130203 is a deficient number, since it is larger than the sum of its proper divisors (4652005).

203213130203 is an equidigital number, since it uses as much as digits as its factorization.

203213130203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4652004.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 203213130203 its reverse (302031312302), we get a palindrome (505244442505).

The spelling of 203213130203 in words is "two hundred three billion, two hundred thirteen million, one hundred thirty thousand, two hundred three".