215320143205 has 8 divisors (see below), whose sum is σ = 258387352704. Its totient is φ = 172253994000.

The previous prime is 215320143197. The next prime is 215320143229. The reversal of 215320143205 is 502341023512.

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

It is not a de Polignac number, because 215320143205 - 2³ = 215320143197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285760 + ... + 715750.

It is an arithmetic number, because the mean of its divisors is an integer number (32298419088).

Almost surely, 2^215320143205 is an apocalyptic number.

It is an amenable number.

215320143205 is a deficient number, since it is larger than the sum of its proper divisors (43067209499).

215320143205 is a wasteful number, since it uses less digits than its factorization.

215320143205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530147.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 215320143205 its reverse (502341023512), we get a palindrome (717661166717).

The spelling of 215320143205 in words is "two hundred fifteen billion, three hundred twenty million, one hundred forty-three thousand, two hundred five".