20031203 has 4 divisors (see below), whose sum is σ = 20040168. Its totient is φ = 20022240.

The previous prime is 20031173. The next prime is 20031217. The reversal of 20031203 is 30213002.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20031203 - 2⁶ = 20031139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20031223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1883 + ... + 6603.

It is an arithmetic number, because the mean of its divisors is an integer number (5010042).

Almost surely, 2^20031203 is an apocalyptic number.

20031203 is a deficient number, since it is larger than the sum of its proper divisors (8965).

20031203 is an equidigital number, since it uses as much as digits as its factorization.

20031203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8964.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 20031203 is about 4475.6231968297. The cubic root of 20031203 is about 271.5828515992.

Adding to 20031203 its reverse (30213002), we get a palindrome (50244205).

The spelling of 20031203 in words is "twenty million, thirty-one thousand, two hundred three".