1323345312 has 36 divisors (see below), whose sum is σ = 3763264050. Its totient is φ = 441115008.

The previous prime is 1323345311. The next prime is 1323345377. The reversal of 1323345312 is 2135433231.

1323345312 is a `hidden beast` number, since 1 + 3 + 2 + 3 + 345 + 312 = 666.

It can be written as a sum of positive squares in only one way, i.e., 692531856 + 630813456 = 26316^2 + 25116^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (1323345311) 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 5 ways as a sum of consecutive naturals, for example, 2297187 + ... + 2297762.

Almost surely, 2^1323345312 is an apocalyptic number.

1323345312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1323345312 is an abundant number, since it is smaller than the sum of its proper divisors (2439918738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1323345312 is a wasteful number, since it uses less digits than its factorization.

1323345312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4594965 (or 4594954 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 1323345312 is about 36377.8134582055. The cubic root of 1323345312 is about 1097.8872150668.

Adding to 1323345312 its reverse (2135433231), we get a palindrome (3458778543).

The spelling of 1323345312 in words is "one billion, three hundred twenty-three million, three hundred forty-five thousand, three hundred twelve".