323352500542321 has 4 divisors (see below), whose sum is σ = 323352537537700. Its totient is φ = 323352463546944.

The previous prime is 323352500542231. The next prime is 323352500542381. The reversal of 323352500542321 is 123245005253323.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 144623810129296 + 178728690413025 = 12025964^2 + 13368945^2 .

It is a cyclic number.

It is not a de Polignac number, because 323352500542321 - 2¹⁷ = 323352500411249 is a prime.

It is a super-2 number, since 2×323352500542321² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (323352500542381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2742925 + ... + 25577893.

It is an arithmetic number, because the mean of its divisors is an integer number (80838134384425).

Almost surely, 2^{323352500542321} is an apocalyptic number.

It is an amenable number.

323352500542321 is a deficient number, since it is larger than the sum of its proper divisors (36995379).

323352500542321 is a wasteful number, since it uses less digits than its factorization.

323352500542321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36995378.

The product of its (nonzero) digits is 648000, while the sum is 40.

Adding to 323352500542321 its reverse (123245005253323), we get a palindrome (446597505795644).

The spelling of 323352500542321 in words is "three hundred twenty-three trillion, three hundred fifty-two billion, five hundred million, five hundred forty-two thousand, three hundred twenty-one".