323020133 has 4 divisors (see below), whose sum is σ = 323333868. Its totient is φ = 322706400.

The previous prime is 323020129. The next prime is 323020141. The reversal of 323020133 is 331020323.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 299186209 + 23833924 = 17297^2 + 4882^2 .

It is a cyclic number.

It is not a de Polignac number, because 323020133 - 2² = 323020129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323020153) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 155318 + ... + 157383.

It is an arithmetic number, because the mean of its divisors is an integer number (80833467).

Almost surely, 2^323020133 is an apocalyptic number.

It is an amenable number.

323020133 is a deficient number, since it is larger than the sum of its proper divisors (313735).

323020133 is a wasteful number, since it uses less digits than its factorization.

323020133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313734.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 323020133 is about 17972.7608619266. The cubic root of 323020133 is about 686.1354588898.

Adding to 323020133 its reverse (331020323), we get a palindrome (654040456).

The spelling of 323020133 in words is "three hundred twenty-three million, twenty thousand, one hundred thirty-three".