206306142111 has 24 divisors (see below), whose sum is σ = 299051816544. Its totient is φ = 137051228160.

The previous prime is 206306142041. The next prime is 206306142151. The reversal of 206306142111 is 111241603602.

It is a happy number.

206306142111 is a `hidden beast` number, since 2 + 0 + 6 + 30 + 614 + 2 + 1 + 11 = 666.

It is not a de Polignac number, because 206306142111 - 2⁹ = 206306141599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206306142151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10337935 + ... + 10357871.

It is an arithmetic number, because the mean of its divisors is an integer number (12460492356).

Almost surely, 2^206306142111 is an apocalyptic number.

206306142111 is a deficient number, since it is larger than the sum of its proper divisors (92745674433).

206306142111 is a wasteful number, since it uses less digits than its factorization.

206306142111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23951 (or 23948 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 206306142111 its reverse (111241603602), we get a palindrome (317547745713).

The spelling of 206306142111 in words is "two hundred six billion, three hundred six million, one hundred forty-two thousand, one hundred eleven".