323121320345 has 8 divisors (see below), whose sum is σ = 387776184576. Its totient is φ = 258476656176.

The previous prime is 323121320303. The next prime is 323121320359. The reversal of 323121320345 is 543023121323.

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 323121320345 - 2⁸ = 323121320089 is a prime.

It is a super-2 number, since 2×323121320345² (a number of 24 digits) contains 22 as substring.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 2480147 + ... + 2607176.

It is an arithmetic number, because the mean of its divisors is an integer number (48472023072).

Almost surely, 2^323121320345 is an apocalyptic number.

It is an amenable number.

323121320345 is a deficient number, since it is larger than the sum of its proper divisors (64654864231).

323121320345 is a wasteful number, since it uses less digits than its factorization.

323121320345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5100031.

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 323121320345 its reverse (543023121323), we get a palindrome (866144441668).

The spelling of 323121320345 in words is "three hundred twenty-three billion, one hundred twenty-one million, three hundred twenty thousand, three hundred forty-five".