323130211320 has 256 divisors, whose sum is σ = 1167706368000. Its totient is φ = 69965715456.

The previous prime is 323130211307. The next prime is 323130211357. The reversal of 323130211320 is 23112031323.

It is a super-2 number, since 2×323130211320² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1165941 + ... + 1416219.

It is an arithmetic number, because the mean of its divisors is an integer number (4561353000).

Almost surely, 2^323130211320 is an apocalyptic number.

323130211320 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 323130211320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (583853184000).

323130211320 is an abundant number, since it is smaller than the sum of its proper divisors (844576156680).

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

323130211320 is a wasteful number, since it uses less digits than its factorization.

323130211320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250382 (or 250378 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 323130211320 its reverse (23112031323), we get a palindrome (346242242643).

The spelling of 323130211320 in words is "three hundred twenty-three billion, one hundred thirty million, two hundred eleven thousand, three hundred twenty".