1223330312 has 32 divisors (see below), whose sum is σ = 2343346200. Its totient is φ = 598500864.

The previous prime is 1223330309. The next prime is 1223330347. The reversal of 1223330312 is 2130333221.

It can be written as a sum of positive squares in 4 ways, for example, as 1150159396 + 73170916 = 33914^2 + 8554^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 161228 + ... + 168644.

Almost surely, 2^1223330312 is an apocalyptic number.

It is an amenable number.

1223330312 is a deficient number, since it is larger than the sum of its proper divisors (1120015888).

1223330312 is a wasteful number, since it uses less digits than its factorization.

1223330312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7865 (or 7861 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1223330312 is about 34976.1391808759. The cubic root of 1223330312 is about 1069.5011247651.

Adding to 1223330312 its reverse (2130333221), we get a palindrome (3353663533).

The spelling of 1223330312 in words is "one billion, two hundred twenty-three million, three hundred thirty thousand, three hundred twelve".