2103210312303 has 4 divisors (see below), whose sum is σ = 2804280416408. Its totient is φ = 1402140208200.

The previous prime is 2103210312223. The next prime is 2103210312349. The reversal of 2103210312303 is 3032130123012.

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

It is a de Polignac number, because none of the positive numbers 2^k-2103210312303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2103210312303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103210312403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350535052048 + ... + 350535052053.

It is an arithmetic number, because the mean of its divisors is an integer number (701070104102).

Almost surely, 2^{2103210312303} is an apocalyptic number.

2103210312303 is a deficient number, since it is larger than the sum of its proper divisors (701070104105).

2103210312303 is an equidigital number, since it uses as much as digits as its factorization.

2103210312303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701070104104.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 2103210312303 its reverse (3032130123012), we get a palindrome (5135340435315).

The spelling of 2103210312303 in words is "two trillion, one hundred three billion, two hundred ten million, three hundred twelve thousand, three hundred three".