12031330 has 16 divisors (see below), whose sum is σ = 21732480. Its totient is φ = 4795632.

The previous prime is 12031319. The next prime is 12031337. The reversal of 12031330 is 3313021.

It is a self number, because there is not a number n which added to its sum of digits gives 12031330.

It is not an unprimeable number, because it can be changed into a prime (12031337) 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 7 ways as a sum of consecutive naturals, for example, 1111 + ... + 5029.

It is an arithmetic number, because the mean of its divisors is an integer number (1358280).

Almost surely, 2^12031330 is an apocalyptic number.

12031330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12031330 is a deficient number, since it is larger than the sum of its proper divisors (9701150).

12031330 is a wasteful number, since it uses less digits than its factorization.

12031330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4233.

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

The square root of 12031330 is about 3468.6207633583. The cubic root of 12031330 is about 229.1419192377.

Adding to 12031330 its reverse (3313021), we get a palindrome (15344351).

The spelling of 12031330 in words is "twelve million, thirty-one thousand, three hundred thirty".