206133138102 has 32 divisors (see below), whose sum is σ = 415405778400. Its totient is φ = 68188110848.

The previous prime is 206133138049. The next prime is 206133138149. The reversal of 206133138102 is 201831331602.

206133138102 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 206133138102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2698774 + ... + 2774102.

It is an arithmetic number, because the mean of its divisors is an integer number (12981430575).

Almost surely, 2^206133138102 is an apocalyptic number.

206133138102 is an abundant number, since it is smaller than the sum of its proper divisors (209272640298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206133138102 is a wasteful number, since it uses less digits than its factorization.

206133138102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78800.

The product of its (nonzero) digits is 5184, while the sum is 30.

Adding to 206133138102 its reverse (201831331602), we get a palindrome (407964469704).

The spelling of 206133138102 in words is "two hundred six billion, one hundred thirty-three million, one hundred thirty-eight thousand, one hundred two".