20103203 has 2 divisors, whose sum is σ = 20103204. Its totient is φ = 20103202.

The previous prime is 20103199. The next prime is 20103241. The reversal of 20103203 is 30230102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20103203 - 2² = 20103199 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20103103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051601 + 10051602.

It is an arithmetic number, because the mean of its divisors is an integer number (10051602).

Almost surely, 2^20103203 is an apocalyptic number.

20103203 is a deficient number, since it is larger than the sum of its proper divisors (1).

20103203 is an equidigital number, since it uses as much as digits as its factorization.

20103203 is an odious number, because the sum of its binary digits is odd.

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

The square root of 20103203 is about 4483.6595544265. The cubic root of 20103203 is about 271.9078542760.

Adding to 20103203 its reverse (30230102), we get a palindrome (50333305).

The spelling of 20103203 in words is "twenty million, one hundred three thousand, two hundred three".