323130313020 has 144 divisors (see below), whose sum is σ = 960982571808. Its totient is φ = 81112112640.

The previous prime is 323130312991. The next prime is 323130313057. The reversal of 323130313020 is 20313031323.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3353110 + ... + 3448130.

It is an arithmetic number, because the mean of its divisors is an integer number (6673490082).

Almost surely, 2^323130313020 is an apocalyptic number.

323130313020 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 323130313020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (480491285904).

323130313020 is an abundant number, since it is smaller than the sum of its proper divisors (637852258788).

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

323130313020 is a wasteful number, since it uses less digits than its factorization.

323130313020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95228 (or 95207 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 323130313020 its reverse (20313031323), we get a palindrome (343443344343).

The spelling of 323130313020 in words is "three hundred twenty-three billion, one hundred thirty million, three hundred thirteen thousand, twenty".