203020210213 has 4 divisors (see below), whose sum is σ = 203028282540. Its totient is φ = 203012137888.

The previous prime is 203020210193. The next prime is 203020210231. The reversal of 203020210213 is 312012020302.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10700247364 + 192319962849 = 103442^2 + 438543^2 .

It is a cyclic number.

It is not a de Polignac number, because 203020210213 - 2⁵ = 203020210181 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 (203020210273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3998320 + ... + 4048777.

It is an arithmetic number, because the mean of its divisors is an integer number (50757070635).

Almost surely, 2^203020210213 is an apocalyptic number.

It is an amenable number.

203020210213 is a deficient number, since it is larger than the sum of its proper divisors (8072327).

203020210213 is an equidigital number, since it uses as much as digits as its factorization.

203020210213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8072326.

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

Adding to 203020210213 its reverse (312012020302), we get a palindrome (515032230515).

The spelling of 203020210213 in words is "two hundred three billion, twenty million, two hundred ten thousand, two hundred thirteen".