1323542321 has 8 divisors (see below), whose sum is σ = 1347191520. Its totient is φ = 1300007808.

The previous prime is 1323542317. The next prime is 1323542347. The reversal of 1323542321 is 1232453231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1323542321 - 2² = 1323542317 is a prime.

It is a super-3 number, since 3×1323542321³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323542351) 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 7 ways as a sum of consecutive naturals, for example, 5216 + ... + 51713.

It is an arithmetic number, because the mean of its divisors is an integer number (168398940).

Almost surely, 2^1323542321 is an apocalyptic number.

It is an amenable number.

1323542321 is a deficient number, since it is larger than the sum of its proper divisors (23649199).

1323542321 is an equidigital number, since it uses as much as digits as its factorization.

1323542321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57343.

The product of its digits is 4320, while the sum is 26.

The square root of 1323542321 is about 36380.5211754862. The cubic root of 1323542321 is about 1097.9416939011.

Adding to 1323542321 its reverse (1232453231), we get a palindrome (2555995552).

It can be divided in two parts, 132 and 3542321, that added together give a palindrome (3542453).

The spelling of 1323542321 in words is "one billion, three hundred twenty-three million, five hundred forty-two thousand, three hundred twenty-one".