213242020304 has 10 divisors (see below), whose sum is σ = 413156414370. Its totient is φ = 106621010144.

The previous prime is 213242020253. The next prime is 213242020309. The reversal of 213242020304 is 403020242312.

It can be written as a sum of positive squares in only one way, i.e., 202248078400 + 10993941904 = 449720^2 + 104852^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 213242020304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213242020309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6663813119 + ... + 6663813150.

It is an arithmetic number, because the mean of its divisors is an integer number (41315641437).

Almost surely, 2^213242020304 is an apocalyptic number.

It is an amenable number.

213242020304 is a deficient number, since it is larger than the sum of its proper divisors (199914394066).

213242020304 is a wasteful number, since it uses less digits than its factorization.

213242020304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13327626277 (or 13327626271 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 213242020304 its reverse (403020242312), we get a palindrome (616262262616).

The spelling of 213242020304 in words is "two hundred thirteen billion, two hundred forty-two million, twenty thousand, three hundred four".