323121002232 has 96 divisors (see below), whose sum is σ = 941487148800. Its totient is φ = 92143590336.

The previous prime is 323121002213. The next prime is 323121002233. The reversal of 323121002232 is 232200121323.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 323121002199 and 323121002208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323121002233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 352369 + ... + 877727.

It is an arithmetic number, because the mean of its divisors is an integer number (9807157800).

Almost surely, 2^323121002232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 323121002232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (470743574400).

323121002232 is an abundant number, since it is smaller than the sum of its proper divisors (618366146568).

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

323121002232 is a wasteful number, since it uses less digits than its factorization.

323121002232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525905 (or 525894 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 323121002232 its reverse (232200121323), we get a palindrome (555321123555).

The spelling of 323121002232 in words is "three hundred twenty-three billion, one hundred twenty-one million, two thousand, two hundred thirty-two".