1213330312 has 32 divisors (see below), whose sum is σ = 2335687200. Its totient is φ = 590575104.

The previous prime is 1213330303. The next prime is 1213330351. The reversal of 1213330312 is 2130333121.

It is a self number, because there is not a number n which added to its sum of digits gives 1213330312.

It is an unprimeable number.

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, 99864 + ... + 111352.

It is an arithmetic number, because the mean of its divisors is an integer number (72990225).

Almost surely, 2^1213330312 is an apocalyptic number.

It is an amenable number.

1213330312 is a deficient number, since it is larger than the sum of its proper divisors (1122356888).

1213330312 is a wasteful number, since it uses less digits than its factorization.

1213330312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11845 (or 11841 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1213330312 is about 34832.8912380239. The cubic root of 1213330312 is about 1066.5789687448.

Adding to 1213330312 its reverse (2130333121), we get a palindrome (3343663433).

The spelling of 1213330312 in words is "one billion, two hundred thirteen million, three hundred thirty thousand, three hundred twelve".