323021121223220 has 96 divisors (see below), whose sum is σ = 791753229646848. Its totient is φ = 108392639864832.

The previous prime is 323021121223189. The next prime is 323021121223223. The reversal of 323021121223220 is 22322121120323.

It is a self number, because there is not a number n which added to its sum of digits gives 323021121223220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323021121223223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 940722284 + ... + 941065596.

It is an arithmetic number, because the mean of its divisors is an integer number (8247429475488).

Almost surely, 2^{323021121223220} is an apocalyptic number.

It is an amenable number.

323021121223220 is an abundant number, since it is smaller than the sum of its proper divisors (468732108423628).

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

323021121223220 is a wasteful number, since it uses less digits than its factorization.

323021121223220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486369 (or 486367 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 323021121223220 its reverse (22322121120323), we get a palindrome (345343242343543).

The spelling of 323021121223220 in words is "three hundred twenty-three trillion, twenty-one billion, one hundred twenty-one million, two hundred twenty-three thousand, two hundred twenty".