330121243 has 4 divisors (see below), whose sum is σ = 330708168. Its totient is φ = 329534320.

The previous prime is 330121241. The next prime is 330121273. The reversal of 330121243 is 342121033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342121033 = 29 ⋅11797277.

It is a cyclic number.

It is not a de Polignac number, because 330121243 - 2¹ = 330121241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 330121243.

It is not an unprimeable number, because it can be changed into a prime (330121241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292618 + ... + 293743.

It is an arithmetic number, because the mean of its divisors is an integer number (82677042).

Almost surely, 2^330121243 is an apocalyptic number.

330121243 is a deficient number, since it is larger than the sum of its proper divisors (586925).

330121243 is an equidigital number, since it uses as much as digits as its factorization.

330121243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586924.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 330121243 is about 18169.2389218701. The cubic root of 330121243 is about 691.1269429866.

Adding to 330121243 its reverse (342121033), we get a palindrome (672242276).

The spelling of 330121243 in words is "three hundred thirty million, one hundred twenty-one thousand, two hundred forty-three".