323130921 has 8 divisors (see below), whose sum is σ = 431541984. Its totient is φ = 215070240.

The previous prime is 323130919. The next prime is 323130947. The reversal of 323130921 is 129031323.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 323130921 - 2¹ = 323130919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 323130891 and 323130900.

It is not an unprimeable number, because it can be changed into a prime (323130971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85435 + ... + 89136.

It is an arithmetic number, because the mean of its divisors is an integer number (53942748).

Almost surely, 2^323130921 is an apocalyptic number.

It is an amenable number.

323130921 is a deficient number, since it is larger than the sum of its proper divisors (108411063).

323130921 is a wasteful number, since it uses less digits than its factorization.

323130921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175191.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 323130921 is about 17975.8427062544. The cubic root of 323130921 is about 686.2138924801.

The spelling of 323130921 in words is "three hundred twenty-three million, one hundred thirty thousand, nine hundred twenty-one".