323131221200323 has 4 divisors (see below), whose sum is σ = 324542274568240. Its totient is φ = 321720167832408.

The previous prime is 323131221200287. The next prime is 323131221200441. The reversal of 323131221200323 is 323002122131323.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323131221200323 is a prime.

It is a super-2 number, since 2×323131221200323² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 323131221200291 and 323131221200300.

It is not an unprimeable number, because it can be changed into a prime (323131221209323) 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, 705526683615 + ... + 705526684072.

It is an arithmetic number, because the mean of its divisors is an integer number (81135568642060).

Almost surely, 2^{323131221200323} is an apocalyptic number.

323131221200323 is a deficient number, since it is larger than the sum of its proper divisors (1411053367917).

323131221200323 is a wasteful number, since it uses less digits than its factorization.

323131221200323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411053367916.

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

Adding to 323131221200323 its reverse (323002122131323), we get a palindrome (646133343331646).

The spelling of 323131221200323 in words is "three hundred twenty-three trillion, one hundred thirty-one billion, two hundred twenty-one million, two hundred thousand, three hundred twenty-three".