323340511021 has 4 divisors (see below), whose sum is σ = 352735102944. Its totient is φ = 293945919100.

The previous prime is 323340511009. The next prime is 323340511031. The reversal of 323340511021 is 120115043323.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 323340511021 - 2¹⁷ = 323340379949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323340511031) 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, 14697295945 + ... + 14697295966.

It is an arithmetic number, because the mean of its divisors is an integer number (88183775736).

Almost surely, 2^323340511021 is an apocalyptic number.

It is an amenable number.

323340511021 is a deficient number, since it is larger than the sum of its proper divisors (29394591923).

323340511021 is a wasteful number, since it uses less digits than its factorization.

323340511021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29394591922.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 323340511021 its reverse (120115043323), we get a palindrome (443455554344).

The spelling of 323340511021 in words is "three hundred twenty-three billion, three hundred forty million, five hundred eleven thousand, twenty-one".