323213131230220 has 96 divisors (see below), whose sum is σ = 857822945849856. Its totient is φ = 99361731110400.

The previous prime is 323213131230167. The next prime is 323213131230317. The reversal of 323213131230220 is 22032131312323.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1437412626 + ... + 1437637465.

It is an arithmetic number, because the mean of its divisors is an integer number (8935655685936).

Almost surely, 2^{323213131230220} is an apocalyptic number.

It is an amenable number.

323213131230220 is an abundant number, since it is smaller than the sum of its proper divisors (534609814619636).

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

323213131230220 is a wasteful number, since it uses less digits than its factorization.

323213131230220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2875050191 (or 2875050189 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 323213131230220 its reverse (22032131312323), we get a palindrome (345245262542543).

The spelling of 323213131230220 in words is "three hundred twenty-three trillion, two hundred thirteen billion, one hundred thirty-one million, two hundred thirty thousand, two hundred twenty".