323103920 has 20 divisors (see below), whose sum is σ = 751216800. Its totient is φ = 129241536.

The previous prime is 323103919. The next prime is 323103923. The reversal of 323103920 is 29301323.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×323103920² = 208792286238732800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (323103923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2019320 + ... + 2019479.

It is an arithmetic number, because the mean of its divisors is an integer number (37560840).

Almost surely, 2^323103920 is an apocalyptic number.

It is an amenable number.

323103920 is an abundant number, since it is smaller than the sum of its proper divisors (428112880).

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

323103920 is a wasteful number, since it uses less digits than its factorization.

323103920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4038812 (or 4038806 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 323103920 is about 17975.0916548428. The cubic root of 323103920 is about 686.1947784758.

The spelling of 323103920 in words is "three hundred twenty-three million, one hundred three thousand, nine hundred twenty".