203202240013 has 4 divisors (see below), whose sum is σ = 203203297948. Its totient is φ = 203201182080.

The previous prime is 203202240011. The next prime is 203202240047. The reversal of 203202240013 is 310042202302.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 173453924484 + 29748315529 = 416478^2 + 172477^2 .

It is a cyclic number.

It is not a de Polignac number, because 203202240013 - 2¹ = 203202240011 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 (203202240011) 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, 150678 + ... + 655063.

It is an arithmetic number, because the mean of its divisors is an integer number (50800824487).

Almost surely, 2^203202240013 is an apocalyptic number.

It is an amenable number.

203202240013 is a deficient number, since it is larger than the sum of its proper divisors (1057935).

203202240013 is an equidigital number, since it uses as much as digits as its factorization.

203202240013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057934.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 203202240013 its reverse (310042202302), we get a palindrome (513244442315).

The spelling of 203202240013 in words is "two hundred three billion, two hundred two million, two hundred forty thousand, thirteen".