323320022130 has 128 divisors (see below), whose sum is σ = 936085432320. Its totient is φ = 70011843264.

The previous prime is 323320022107. The next prime is 323320022131. The reversal of 323320022130 is 31220023323.

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 = 323320022097 and 323320022106.

It is not an unprimeable number, because it can be changed into a prime (323320022131) 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, 1328157 + ... + 1552623.

It is an arithmetic number, because the mean of its divisors is an integer number (7313167440).

Almost surely, 2^323320022130 is an apocalyptic number.

323320022130 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 323320022130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (468042716160).

323320022130 is an abundant number, since it is smaller than the sum of its proper divisors (612765410190).

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

323320022130 is a wasteful number, since it uses less digits than its factorization.

323320022130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224541 (or 224503 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 323320022130 its reverse (31220023323), we get a palindrome (354540045453).

The spelling of 323320022130 in words is "three hundred twenty-three billion, three hundred twenty million, twenty-two thousand, one hundred thirty".