1213324312 has 16 divisors (see below), whose sum is σ = 2297509200. Its totient is φ = 600655200.

The previous prime is 1213324303. The next prime is 1213324327. The reversal of 1213324312 is 2134233121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750012 + ... + 751627.

It is an arithmetic number, because the mean of its divisors is an integer number (143594325).

Almost surely, 2^1213324312 is an apocalyptic number.

It is an amenable number.

1213324312 is a deficient number, since it is larger than the sum of its proper divisors (1084184888).

1213324312 is a wasteful number, since it uses less digits than its factorization.

1213324312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501746 (or 1501742 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 1213324312 is about 34832.8051124224. The cubic root of 1213324312 is about 1066.5772106403.

Adding to 1213324312 its reverse (2134233121), we get a palindrome (3347557433).

The spelling of 1213324312 in words is "one billion, two hundred thirteen million, three hundred twenty-four thousand, three hundred twelve".