206316613213 has 4 divisors (see below), whose sum is σ = 215286900768. Its totient is φ = 197346325660.

The previous prime is 206316613201. The next prime is 206316613267. The reversal of 206316613213 is 312316613602.

206316613213 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206316613213 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 (206316616213) 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, 4485143743 + ... + 4485143788.

It is an arithmetic number, because the mean of its divisors is an integer number (53821725192).

Almost surely, 2^206316613213 is an apocalyptic number.

206316613213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

206316613213 is a deficient number, since it is larger than the sum of its proper divisors (8970287555).

206316613213 is an equidigital number, since it uses as much as digits as its factorization.

206316613213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8970287554.

The product of its (nonzero) digits is 23328, while the sum is 34.

The spelling of 206316613213 in words is "two hundred six billion, three hundred sixteen million, six hundred thirteen thousand, two hundred thirteen".