323143020 has 120 divisors (see below), whose sum is σ = 1021197408. Its totient is φ = 85536000.

The previous prime is 323143019. The next prime is 323143061. The reversal of 323143020 is 20341323.

323143020 is a `hidden beast` number, since 3 + 231 + 430 + 2 + 0 = 666.

It is a super-2 number, since 2×323143020² = 208842822749440800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 323142984 and 323143002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 243960 + ... + 245280.

Almost surely, 2^323143020 is an apocalyptic number.

323143020 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 323143020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (510598704).

323143020 is an abundant number, since it is smaller than the sum of its proper divisors (698054388).

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

323143020 is a wasteful number, since it uses less digits than its factorization.

323143020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493 (or 1482 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 323143020 is about 17976.1792380917. The cubic root of 323143020 is about 686.2224570151. Note that the first 3 decimals are identical.

Adding to 323143020 its reverse (20341323), we get a palindrome (343484343).

The spelling of 323143020 in words is "three hundred twenty-three million, one hundred forty-three thousand, twenty".