206535120210323 has 4 divisors (see below), whose sum is σ = 206540005073688. Its totient is φ = 206530235346960.

The previous prime is 206535120210247. The next prime is 206535120210379. The reversal of 206535120210323 is 323012021535602.

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

It is a cyclic number.

It is not a de Polignac number, because 206535120210323 - 2³² = 206530825243027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206535120260323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2442368261 + ... + 2442452822.

It is an arithmetic number, because the mean of its divisors is an integer number (51635001268422).

Almost surely, 2^{206535120210323} is an apocalyptic number.

206535120210323 is a deficient number, since it is larger than the sum of its proper divisors (4884863365).

206535120210323 is an equidigital number, since it uses as much as digits as its factorization.

206535120210323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4884863364.

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 206535120210323 its reverse (323012021535602), we get a palindrome (529547141745925).

The spelling of 206535120210323 in words is "two hundred six trillion, five hundred thirty-five billion, one hundred twenty million, two hundred ten thousand, three hundred twenty-three".