203113210203 has 8 divisors (see below), whose sum is σ = 300908459600. Its totient is φ = 135408806784.

The previous prime is 203113210193. The next prime is 203113210211. The reversal of 203113210203 is 302012311302.

It is not a de Polignac number, because 203113210203 - 2¹³ = 203113202011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203113210903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3761355718 + ... + 3761355771.

It is an arithmetic number, because the mean of its divisors is an integer number (37613557450).

Almost surely, 2^203113210203 is an apocalyptic number.

203113210203 is a deficient number, since it is larger than the sum of its proper divisors (97795249397).

203113210203 is an equidigital number, since it uses as much as digits as its factorization.

203113210203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7522711498 (or 7522711492 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 203113210203 its reverse (302012311302), we get a palindrome (505125521505).

The spelling of 203113210203 in words is "two hundred three billion, one hundred thirteen million, two hundred ten thousand, two hundred three".