206236124311 has 4 divisors (see below), whose sum is σ = 235698427792. Its totient is φ = 176773820832.

The previous prime is 206236124279. The next prime is 206236124317. The reversal of 206236124311 is 113421632602.

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

It is not a de Polignac number, because 206236124311 - 2⁵ = 206236124279 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 (206236124317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14731151730 + ... + 14731151743.

It is an arithmetic number, because the mean of its divisors is an integer number (58924606948).

Almost surely, 2^206236124311 is an apocalyptic number.

206236124311 is a deficient number, since it is larger than the sum of its proper divisors (29462303481).

206236124311 is an equidigital number, since it uses as much as digits as its factorization.

206236124311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29462303480.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 206236124311 its reverse (113421632602), we get a palindrome (319657756913).

The spelling of 206236124311 in words is "two hundred six billion, two hundred thirty-six million, one hundred twenty-four thousand, three hundred eleven".