205223541235 has 4 divisors (see below), whose sum is σ = 246268249488. Its totient is φ = 164178832984.

The previous prime is 205223541227. The next prime is 205223541239. The reversal of 205223541235 is 532145322502.

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 205223541235 - 2³ = 205223541227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 205223541235.

It is not an unprimeable number, because it can be changed into a prime (205223541239) 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, 20522354119 + ... + 20522354128.

It is an arithmetic number, because the mean of its divisors is an integer number (61567062372).

Almost surely, 2^205223541235 is an apocalyptic number.

205223541235 is a deficient number, since it is larger than the sum of its proper divisors (41044708253).

205223541235 is an equidigital number, since it uses as much as digits as its factorization.

205223541235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41044708252.

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 205223541235 its reverse (532145322502), we get a palindrome (737368863737).

The spelling of 205223541235 in words is "two hundred five billion, two hundred twenty-three million, five hundred forty-one thousand, two hundred thirty-five".