1321000324 has 24 divisors (see below), whose sum is σ = 2686783680. Its totient is φ = 556546656.

The previous prime is 1321000319. The next prime is 1321000333. The reversal of 1321000324 is 4230001231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1321000298 and 1321000307.

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 7 ways as a sum of consecutive naturals, for example, 398167 + ... + 401470.

It is an arithmetic number, because the mean of its divisors is an integer number (111949320).

Almost surely, 2^1321000324 is an apocalyptic number.

1321000324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1321000324 is an abundant number, since it is smaller than the sum of its proper divisors (1365783356).

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

1321000324 is a wasteful number, since it uses less digits than its factorization.

1321000324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799707 (or 799705 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1321000324 is about 36345.5681479875. The cubic root of 1321000324 is about 1097.2383407018.

Adding to 1321000324 its reverse (4230001231), we get a palindrome (5551001555).

The spelling of 1321000324 in words is "one billion, three hundred twenty-one million, three hundred twenty-four", and thus it is an aban number.