323121032322013 has 4 divisors (see below), whose sum is σ = 323123619546940. Its totient is φ = 323118445097088.

The previous prime is 323121032321957. The next prime is 323121032322019. The reversal of 323121032322013 is 310223230121323.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 128792469650329 + 194328562671684 = 11348677^2 + 13940178^2 .

It is a cyclic number.

It is not a de Polignac number, because 323121032322013 - 2⁹ = 323121032321501 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 (323121032322019) 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, 1293425118 + ... + 1293674911.

It is an arithmetic number, because the mean of its divisors is an integer number (80780904886735).

Almost surely, 2^{323121032322013} is an apocalyptic number.

It is an amenable number.

323121032322013 is a deficient number, since it is larger than the sum of its proper divisors (2587224927).

323121032322013 is a wasteful number, since it uses less digits than its factorization.

323121032322013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2587224926.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 323121032322013 its reverse (310223230121323), we get a palindrome (633344262443336).

The spelling of 323121032322013 in words is "three hundred twenty-three trillion, one hundred twenty-one billion, thirty-two million, three hundred twenty-two thousand, thirteen".