323123121330 has 128 divisors (see below), whose sum is σ = 825415557120. Its totient is φ = 80725720320.

The previous prime is 323123121319. The next prime is 323123121331. The reversal of 323123121330 is 33121321323.

It is a self number, because there is not a number n which added to its sum of digits gives 323123121330.

It is not an unprimeable number, because it can be changed into a prime (323123121331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18743815 + ... + 18761045.

It is an arithmetic number, because the mean of its divisors is an integer number (6448559040).

Almost surely, 2^323123121330 is an apocalyptic number.

323123121330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 323123121330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (412707778560).

323123121330 is an abundant number, since it is smaller than the sum of its proper divisors (502292435790).

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

323123121330 is a wasteful number, since it uses less digits than its factorization.

323123121330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17624.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 323123121330 its reverse (33121321323), we get a palindrome (356244442653).

The spelling of 323123121330 in words is "three hundred twenty-three billion, one hundred twenty-three million, one hundred twenty-one thousand, three hundred thirty".