1323435320 has 32 divisors (see below), whose sum is σ = 3007221120. Its totient is φ = 524131200.

The previous prime is 1323435293. The next prime is 1323435359. The reversal of 1323435320 is 235343231.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1323435320.

It is a congruent number.

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, 159752 + ... + 167831.

It is an arithmetic number, because the mean of its divisors is an integer number (93975660).

Almost surely, 2^1323435320 is an apocalyptic number.

1323435320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323435320 is an abundant number, since it is smaller than the sum of its proper divisors (1683785800).

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

1323435320 is a wasteful number, since it uses less digits than its factorization.

1323435320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327695 (or 327691 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 26.

The square root of 1323435320 is about 36379.0505648512. The cubic root of 1323435320 is about 1097.9121056204.

Adding to 1323435320 its reverse (235343231), we get a palindrome (1558778551).

The spelling of 1323435320 in words is "one billion, three hundred twenty-three million, four hundred thirty-five thousand, three hundred twenty".