321322121313 has 16 divisors (see below), whose sum is σ = 437578225920. Its totient is φ = 209641074176.

The previous prime is 321322121303. The next prime is 321322121347. The reversal of 321322121313 is 313121223123.

It is a cyclic number.

It is not a de Polignac number, because 321322121313 - 2¹⁶ = 321322055777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (321322121303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1946731 + ... + 2105327.

It is an arithmetic number, because the mean of its divisors is an integer number (27348639120).

Almost surely, 2^321322121313 is an apocalyptic number.

It is an amenable number.

321322121313 is a deficient number, since it is larger than the sum of its proper divisors (116256104607).

321322121313 is a wasteful number, since it uses less digits than its factorization.

321322121313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173016.

The product of its digits is 1296, while the sum is 24.

Adding to 321322121313 its reverse (313121223123), we get a palindrome (634443344436).

The spelling of 321322121313 in words is "three hundred twenty-one billion, three hundred twenty-two million, one hundred twenty-one thousand, three hundred thirteen".