2103210203 has 4 divisors (see below), whose sum is σ = 2160053760. Its totient is φ = 2046366648.

The previous prime is 2103210167. The next prime is 2103210247. The reversal of 2103210203 is 3020123012.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2103210203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2103210253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28421723 + ... + 28421796.

It is an arithmetic number, because the mean of its divisors is an integer number (540013440).

Almost surely, 2^2103210203 is an apocalyptic number.

2103210203 is a deficient number, since it is larger than the sum of its proper divisors (56843557).

2103210203 is an equidigital number, since it uses as much as digits as its factorization.

2103210203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56843556.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2103210203 is about 45860.7697602210. The cubic root of 2103210203 is about 1281.2313596082.

Adding to 2103210203 its reverse (3020123012), we get a palindrome (5123333215).

The spelling of 2103210203 in words is "two billion, one hundred three million, two hundred ten thousand, two hundred three".