328311109 has 4 divisors (see below), whose sum is σ = 375212704. Its totient is φ = 281409516.

The previous prime is 328311107. The next prime is 328311119. The reversal of 328311109 is 901113823.

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.

It is a cyclic number.

It is not a de Polignac number, because 328311109 - 2¹ = 328311107 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 (328311107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23450787 + ... + 23450800.

It is an arithmetic number, because the mean of its divisors is an integer number (93803176).

Almost surely, 2^328311109 is an apocalyptic number.

It is an amenable number.

328311109 is a deficient number, since it is larger than the sum of its proper divisors (46901595).

328311109 is an equidigital number, since it uses as much as digits as its factorization.

328311109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46901594.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 328311109 is about 18119.3573009641. The cubic root of 328311109 is about 689.8614221457.

The spelling of 328311109 in words is "three hundred twenty-eight million, three hundred eleven thousand, one hundred nine".