330121 has 4 divisors (see below), whose sum is σ = 360144. Its totient is φ = 300100.

The previous prime is 330103. The next prime is 330131. The reversal of 330121 is 121033.

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, and also an emirpimes, since its reverse is a distinct semiprime: 121033 = 11 ⋅11003.

It is a cyclic number.

It is not a de Polignac number, because 330121 - 2⁷ = 329993 is a prime.

It is a Duffinian number.

330121 is a modest number, since divided by 121 gives 33 as remainder.

330121 is a lucky number.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 330098 and 330107.

It is not an unprimeable number, because it can be changed into a prime (330131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14995 + ... + 15016.

It is an arithmetic number, because the mean of its divisors is an integer number (90036).

2³³⁰¹²¹ is an apocalyptic number.

It is an amenable number.

330121 is a deficient number, since it is larger than the sum of its proper divisors (30023).

330121 is a wasteful number, since it uses less digits than its factorization.

330121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30022.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 330121 is about 574.5615719834. The cubic root of 330121 is about 69.1126773409.

Adding to 330121 its reverse (121033), we get a palindrome (451154).

The spelling of 330121 in words is "three hundred thirty thousand, one hundred twenty-one".