328103231 has 4 divisors (see below), whose sum is σ = 334293912. Its totient is φ = 321912552.

The previous prime is 328103227. The next prime is 328103299. The reversal of 328103231 is 132301823.

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

It is a cyclic number.

It is not a de Polignac number, because 328103231 - 2² = 328103227 is a prime.

It is a super-2 number, since 2×328103231² = 215303460385278722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 328103197 and 328103206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328103131) 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, 3095261 + ... + 3095366.

It is an arithmetic number, because the mean of its divisors is an integer number (83573478).

Almost surely, 2^328103231 is an apocalyptic number.

328103231 is a deficient number, since it is larger than the sum of its proper divisors (6190681).

328103231 is an equidigital number, since it uses as much as digits as its factorization.

328103231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6190680.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 328103231 is about 18113.6200412839. The cubic root of 328103231 is about 689.7157906734.

The spelling of 328103231 in words is "three hundred twenty-eight million, one hundred three thousand, two hundred thirty-one".