328121311 has 16 divisors (see below), whose sum is σ = 381966336. Its totient is φ = 276050016.

The previous prime is 328121303. The next prime is 328121323. The reversal of 328121311 is 113121823.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 328121311 - 2³ = 328121303 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 (328121351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147570 + ... + 149776.

It is an arithmetic number, because the mean of its divisors is an integer number (23872896).

Almost surely, 2^328121311 is an apocalyptic number.

328121311 is a deficient number, since it is larger than the sum of its proper divisors (53845025).

328121311 is a wasteful number, since it uses less digits than its factorization.

328121311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2598.

The product of its digits is 288, while the sum is 22.

The square root of 328121311 is about 18114.1191063767. The cubic root of 328121311 is about 689.7284592802.

The spelling of 328121311 in words is "three hundred twenty-eight million, one hundred twenty-one thousand, three hundred eleven".