205235011 has 4 divisors (see below), whose sum is σ = 205276000. Its totient is φ = 205194024.

The previous prime is 205234961. The next prime is 205235077. The reversal of 205235011 is 110532502.

205235011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110532502 = 2 ⋅55266251.

It is a cyclic number.

It is not a de Polignac number, because 205235011 - 2⁹ = 205234499 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 205235011.

It is not an unprimeable number, because it can be changed into a prime (205235111) 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, 11736 + ... + 23413.

It is an arithmetic number, because the mean of its divisors is an integer number (51319000).

Almost surely, 2^205235011 is an apocalyptic number.

205235011 is a deficient number, since it is larger than the sum of its proper divisors (40989).

205235011 is an equidigital number, since it uses as much as digits as its factorization.

205235011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40988.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 205235011 is about 14326.0256526365. The cubic root of 205235011 is about 589.8620868880.

Adding to 205235011 its reverse (110532502), we get a palindrome (315767513).

The spelling of 205235011 in words is "two hundred five million, two hundred thirty-five thousand, eleven".