206631183223 has 4 divisors (see below), whose sum is σ = 206839691968. Its totient is φ = 206422674480.

The previous prime is 206631183217. The next prime is 206631183233. The reversal of 206631183223 is 322381136602.

206631183223 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206631183223 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 (206631183203) 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, 104252886 + ... + 104254867.

It is an arithmetic number, because the mean of its divisors is an integer number (51709922992).

Almost surely, 2^206631183223 is an apocalyptic number.

206631183223 is a deficient number, since it is larger than the sum of its proper divisors (208508745).

206631183223 is an equidigital number, since it uses as much as digits as its factorization.

206631183223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208508744.

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 206631183223 in words is "two hundred six billion, six hundred thirty-one million, one hundred eighty-three thousand, two hundred twenty-three".