323130211223220 has 192 divisors, whose sum is σ = 1009545892992000. Its totient is φ = 85803640215552.

The previous prime is 323130211223213. The next prime is 323130211223321. The reversal of 323130211223220 is 22322112031323.

323130211223220 is a `hidden beast` number, since 3 + 2 + 3 + 1 + 3 + 0 + 211 + 223 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3888923436 + ... + 3889006524.

It is an arithmetic number, because the mean of its divisors is an integer number (5258051526000).

Almost surely, 2^{323130211223220} is an apocalyptic number.

323130211223220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 323130211223220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (504772946496000).

323130211223220 is an abundant number, since it is smaller than the sum of its proper divisors (686415681768780).

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

323130211223220 is a wasteful number, since it uses less digits than its factorization.

323130211223220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113479 (or 113471 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 323130211223220 its reverse (22322112031323), we get a palindrome (345452323254543).

The spelling of 323130211223220 in words is "three hundred twenty-three trillion, one hundred thirty billion, two hundred eleven million, two hundred twenty-three thousand, two hundred twenty".