203212242212303 has 4 divisors (see below), whose sum is σ = 205307213781600. Its totient is φ = 201117270643008.

The previous prime is 203212242212267. The next prime is 203212242212321. The reversal of 203212242212303 is 303212242212302.

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-203212242212303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203212242212003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1047485784503 + ... + 1047485784696.

It is an arithmetic number, because the mean of its divisors is an integer number (51326803445400).

Almost surely, 2^{203212242212303} is an apocalyptic number.

203212242212303 is a deficient number, since it is larger than the sum of its proper divisors (2094971569297).

203212242212303 is an equidigital number, since it uses as much as digits as its factorization.

203212242212303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094971569296.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 203212242212303 its reverse (303212242212302), we get a palindrome (506424484424605).

Subtracting 203212242212303 from its reverse (303212242212302), we obtain a palindrome (99999999999999).

The spelling of 203212242212303 in words is "two hundred three trillion, two hundred twelve billion, two hundred forty-two million, two hundred twelve thousand, three hundred three".