328121000121823 has 4 divisors (see below), whose sum is σ = 328129231378608. Its totient is φ = 328112768865040.

The previous prime is 328121000121767. The next prime is 328121000121877.

328121000121823 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328121000121823 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 (328121000121223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4115568598 + ... + 4115648323.

It is an arithmetic number, because the mean of its divisors is an integer number (82032307844652).

Almost surely, 2^{328121000121823} is an apocalyptic number.

328121000121823 is a deficient number, since it is larger than the sum of its proper divisors (8231256785).

328121000121823 is an equidigital number, since it uses as much as digits as its factorization.

328121000121823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8231256784.

The product of its (nonzero) digits is 9216, while the sum is 34.

It can be divided in two parts, 328121000 and 121823, that added together give a palindrome (328242823).

The spelling of 328121000121823 in words is "three hundred twenty-eight trillion, one hundred twenty-one billion, one hundred twenty-one thousand, eight hundred twenty-three".