20203312203 has 12 divisors (see below), whose sum is σ = 29593585008. Its totient is φ = 13279171920.

The previous prime is 20203312183. The next prime is 20203312223. The reversal of 20203312203 is 30221330202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20203312183) and next prime (20203312223).

It is not a de Polignac number, because 20203312203 - 2²⁵ = 20169757771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20203312223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15807900 + ... + 15809177.

It is an arithmetic number, because the mean of its divisors is an integer number (2466132084).

Almost surely, 2^20203312203 is an apocalyptic number.

20203312203 is a deficient number, since it is larger than the sum of its proper divisors (9390272805).

20203312203 is a wasteful number, since it uses less digits than its factorization.

20203312203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31617154 (or 31617151 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20203312203 its reverse (30221330202), we get a palindrome (50424642405).

The spelling of 20203312203 in words is "twenty billion, two hundred three million, three hundred twelve thousand, two hundred three".