321313242522 has 16 divisors (see below), whose sum is σ = 642986925120. Its totient is φ = 107044340832.

The previous prime is 321313242521. The next prime is 321313242553. The reversal of 321313242522 is 225242313123.

It is a self number, because there is not a number n which added to its sum of digits gives 321313242522.

It is not an unprimeable number, because it can be changed into a prime (321313242521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15006747 + ... + 15028142.

It is an arithmetic number, because the mean of its divisors is an integer number (40186682820).

Almost surely, 2^321313242522 is an apocalyptic number.

321313242522 is an abundant number, since it is smaller than the sum of its proper divisors (321673682598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321313242522 is a wasteful number, since it uses less digits than its factorization.

321313242522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30036677.

The product of its digits is 17280, while the sum is 30.

Adding to 321313242522 its reverse (225242313123), we get a palindrome (546555555645).

The spelling of 321313242522 in words is "three hundred twenty-one billion, three hundred thirteen million, two hundred forty-two thousand, five hundred twenty-two".