213203432213 has 4 divisors (see below), whose sum is σ = 216698570508. Its totient is φ = 209708293920.

The previous prime is 213203432207. The next prime is 213203432227. The reversal of 213203432213 is 312234302312.

It is a happy number.

213203432213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 108756827089 + 104446605124 = 329783^2 + 323182^2 .

It is a cyclic number.

It is not a de Polignac number, because 213203432213 - 2¹² = 213203428117 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 (213203432243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1747569056 + ... + 1747569177.

It is an arithmetic number, because the mean of its divisors is an integer number (54174642627).

Almost surely, 2^213203432213 is an apocalyptic number.

It is an amenable number.

213203432213 is a deficient number, since it is larger than the sum of its proper divisors (3495138295).

213203432213 is an equidigital number, since it uses as much as digits as its factorization.

213203432213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3495138294.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 213203432213 its reverse (312234302312), we get a palindrome (525437734525).

The spelling of 213203432213 in words is "two hundred thirteen billion, two hundred three million, four hundred thirty-two thousand, two hundred thirteen".