213024330565 has 8 divisors (see below), whose sum is σ = 255654103320. Its totient is φ = 170402860032.

The previous prime is 213024330503. The next prime is 213024330611. The reversal of 213024330565 is 565033420312.

213024330565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 58431459076 + 154592871489 = 241726^2 + 393183^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213024330565 - 2²⁵ = 212990776133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213024330565.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2018964 + ... + 2121853.

It is an arithmetic number, because the mean of its divisors is an integer number (31956762915).

Almost surely, 2^213024330565 is an apocalyptic number.

It is an amenable number.

213024330565 is a deficient number, since it is larger than the sum of its proper divisors (42629772755).

213024330565 is a wasteful number, since it uses less digits than its factorization.

213024330565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4151111.

The product of its (nonzero) digits is 64800, while the sum is 34.

Adding to 213024330565 its reverse (565033420312), we get a palindrome (778057750877).

The spelling of 213024330565 in words is "two hundred thirteen billion, twenty-four million, three hundred thirty thousand, five hundred sixty-five".