328121201 has 4 divisors (see below), whose sum is σ = 328160832. Its totient is φ = 328081572.

The previous prime is 328121191. The next prime is 328121231. The reversal of 328121201 is 102121823.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 328121201 - 2¹⁴ = 328104817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328121231) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2141 + ... + 25706.

It is an arithmetic number, because the mean of its divisors is an integer number (82040208).

Almost surely, 2^328121201 is an apocalyptic number.

It is an amenable number.

328121201 is a deficient number, since it is larger than the sum of its proper divisors (39631).

328121201 is a wasteful number, since it uses less digits than its factorization.

328121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39630.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 328121201 is about 18114.1160700709. The cubic root of 328121201 is about 689.7283822049.

The spelling of 328121201 in words is "three hundred twenty-eight million, one hundred twenty-one thousand, two hundred one".