329804272121 has 2 divisors, whose sum is σ = 329804272122. Its totient is φ = 329804272120.

The previous prime is 329804272111. The next prime is 329804272169. The reversal of 329804272121 is 121272408923.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 251998980025 + 77805292096 = 501995^2 + 278936^2 .

It is a cyclic number.

It is not a de Polignac number, because 329804272121 - 2³⁸ = 54926365177 is a prime.

It is not a weakly prime, because it can be changed into another prime (329804272111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164902136060 + 164902136061.

It is an arithmetic number, because the mean of its divisors is an integer number (164902136061).

Almost surely, 2^329804272121 is an apocalyptic number.

It is an amenable number.

329804272121 is a deficient number, since it is larger than the sum of its proper divisors (1).

329804272121 is an equidigital number, since it uses as much as digits as its factorization.

329804272121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 329804272121 in words is "three hundred twenty-nine billion, eight hundred four million, two hundred seventy-two thousand, one hundred twenty-one".