3215153313205 has 4 divisors (see below), whose sum is σ = 3858183975852. Its totient is φ = 2572122650560.

The previous prime is 3215153313199. The next prime is 3215153313209. The reversal of 3215153313205 is 5023133515123.

3215153313205 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.

It can be written as a sum of positive squares in 2 ways, for example, as 1216430320561 + 1998722992644 = 1102919^2 + 1413762^2 .

It is not a de Polignac number, because 3215153313205 - 2¹⁷ = 3215153182133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3215153313209) 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, 321515331316 + ... + 321515331325.

It is an arithmetic number, because the mean of its divisors is an integer number (964545993963).

Almost surely, 2^{3215153313205} is an apocalyptic number.

It is an amenable number.

3215153313205 is a deficient number, since it is larger than the sum of its proper divisors (643030662647).

3215153313205 is an equidigital number, since it uses as much as digits as its factorization.

3215153313205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643030662646.

The product of its (nonzero) digits is 40500, while the sum is 34.

Adding to 3215153313205 its reverse (5023133515123), we get a palindrome (8238286828328).

The spelling of 3215153313205 in words is "three trillion, two hundred fifteen billion, one hundred fifty-three million, three hundred thirteen thousand, two hundred five".