1324321128 has 192 divisors, whose sum is σ = 4108104000. Its totient is φ = 382040064.

The previous prime is 1324321121. The next prime is 1324321153. The reversal of 1324321128 is 8211234231.

1324321128 is a `hidden beast` number, since 1 + 324 + 321 + 12 + 8 = 666.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1324321121) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 2009263 + ... + 2009921.

It is an arithmetic number, because the mean of its divisors is an integer number (21396375).

Almost surely, 2^1324321128 is an apocalyptic number.

1324321128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1324321128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2054052000).

1324321128 is an abundant number, since it is smaller than the sum of its proper divisors (2783782872).

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

1324321128 is a wasteful number, since it uses less digits than its factorization.

1324321128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816 (or 809 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 1324321128 is about 36391.2232275861. The cubic root of 1324321128 is about 1098.1570042341.

Adding to 1324321128 its reverse (8211234231), we get a palindrome (9535555359).

The spelling of 1324321128 in words is "one billion, three hundred twenty-four million, three hundred twenty-one thousand, one hundred twenty-eight".