3121330 has 32 divisors (see below), whose sum is σ = 6023808. Its totient is φ = 1161600.

The previous prime is 3121303. The next prime is 3121333. The reversal of 3121330 is 331213.

3121330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3121330.

It is not an unprimeable number, because it can be changed into a prime (3121333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9265 + ... + 9595.

It is an arithmetic number, because the mean of its divisors is an integer number (188244).

Almost surely, 2^3121330 is an apocalyptic number.

3121330 is a deficient number, since it is larger than the sum of its proper divisors (2902478).

3121330 is a wasteful number, since it uses less digits than its factorization.

3121330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 3121330 is about 1766.7286152661. The cubic root of 3121330 is about 146.1436317174.

Adding to 3121330 its reverse (331213), we get a palindrome (3452543).

The spelling of 3121330 in words is "three million, one hundred twenty-one thousand, three hundred thirty".