1323421552 has 20 divisors (see below), whose sum is σ = 2565424840. Its totient is φ = 661376448.

The previous prime is 1323421529. The next prime is 1323421591. The reversal of 1323421552 is 2551243231.

It is a self number, because there is not a number n which added to its sum of digits gives 1323421552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13474 + ... + 53182.

It is an arithmetic number, because the mean of its divisors is an integer number (128271242).

Almost surely, 2^1323421552 is an apocalyptic number.

It is an amenable number.

1323421552 is a deficient number, since it is larger than the sum of its proper divisors (1242003288).

1323421552 is a wasteful number, since it uses less digits than its factorization.

1323421552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41800 (or 41794 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 1323421552 is about 36378.8613345718. The cubic root of 1323421552 is about 1097.9082983304.

Adding to 1323421552 its reverse (2551243231), we get a palindrome (3874664783).

The spelling of 1323421552 in words is "one billion, three hundred twenty-three million, four hundred twenty-one thousand, five hundred fifty-two".