203013313203 has 4 divisors (see below), whose sum is σ = 270684417608. Its totient is φ = 135342208800.

The previous prime is 203013313189. The next prime is 203013313219. The reversal of 203013313203 is 302313310302.

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

It is not a de Polignac number, because 203013313203 - 2⁸ = 203013312947 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 203013313203.

It is not an unprimeable number, because it can be changed into a prime (203013313253) 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, 33835552198 + ... + 33835552203.

It is an arithmetic number, because the mean of its divisors is an integer number (67671104402).

Almost surely, 2^203013313203 is an apocalyptic number.

203013313203 is a deficient number, since it is larger than the sum of its proper divisors (67671104405).

203013313203 is an equidigital number, since it uses as much as digits as its factorization.

203013313203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67671104404.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 203013313203 its reverse (302313310302), we get a palindrome (505326623505).

The spelling of 203013313203 in words is "two hundred three billion, thirteen million, three hundred thirteen thousand, two hundred three".