203201020213 has 6 divisors (see below), whose sum is σ = 215857139426. Its totient is φ = 191248018752.

The previous prime is 203201020201. The next prime is 203201020219. The reversal of 203201020213 is 312020102302.

It can be written as a sum of positive squares in 3 ways, for example, as 137776077124 + 65424943089 = 371182^2 + 255783^2 .

It is a de Polignac number, because none of the positive numbers 2^k-203201020213 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 (203201020219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 351558570 + ... + 351559147.

Almost surely, 2^203201020213 is an apocalyptic number.

It is an amenable number.

203201020213 is a deficient number, since it is larger than the sum of its proper divisors (12656119213).

203201020213 is an equidigital number, since it uses as much as digits as its factorization.

203201020213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703117751 (or 703117734 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 203201020213 its reverse (312020102302), we get a palindrome (515221122515).

The spelling of 203201020213 in words is "two hundred three billion, two hundred one million, twenty thousand, two hundred thirteen".