330121331 has 4 divisors (see below), whose sum is σ = 330336000. Its totient is φ = 329906664.

The previous prime is 330121313. The next prime is 330121339. The reversal of 330121331 is 133121033.

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-330121331 is a prime.

It is a super-2 number, since 2×330121331² = 217960186362423122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (330121339) 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, 105011 + ... + 108108.

It is an arithmetic number, because the mean of its divisors is an integer number (82584000).

Almost surely, 2^330121331 is an apocalyptic number.

330121331 is a deficient number, since it is larger than the sum of its proper divisors (214669).

330121331 is a wasteful number, since it uses less digits than its factorization.

330121331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214668.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 330121331 is about 18169.2413435454. The cubic root of 330121331 is about 691.1270043975.

Adding to 330121331 its reverse (133121033), we get a palindrome (463242364).

It can be divided in two parts, 33012 and 1331, that added together give a palindrome (34343).

The spelling of 330121331 in words is "three hundred thirty million, one hundred twenty-one thousand, three hundred thirty-one".