213131032331322 has 16 divisors (see below), whose sum is σ = 487156645328832. Its totient is φ = 60894580666080.

The previous prime is 213131032331293. The next prime is 213131032331363. The reversal of 213131032331322 is 223133230131312.

It is a self number, because there is not a number n which added to its sum of digits gives 213131032331322.

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, 2537274194379 + ... + 2537274194462.

It is an arithmetic number, because the mean of its divisors is an integer number (30447290333052).

Almost surely, 2^{213131032331322} is an apocalyptic number.

213131032331322 is an abundant number, since it is smaller than the sum of its proper divisors (274025612997510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213131032331322 is a wasteful number, since it uses less digits than its factorization.

213131032331322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5074548388853.

The product of its (nonzero) digits is 11664, while the sum is 30.

Adding to 213131032331322 its reverse (223133230131312), we get a palindrome (436264262462634).

The spelling of 213131032331322 in words is "two hundred thirteen trillion, one hundred thirty-one billion, thirty-two million, three hundred thirty-one thousand, three hundred twenty-two".