321430330042340 has 12 divisors (see below), whose sum is σ = 675003693088956. Its totient is φ = 128572132016928.

The previous prime is 321430330042337. The next prime is 321430330042397. The reversal of 321430330042340 is 43240033034123.

It can be written as a sum of positive squares in 2 ways, for example, as 250675719238564 + 70754610803776 = 15832742^2 + 8411576^2 .

It is a super-2 number, since 2×321430330042340² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321430330042297 and 321430330042306.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8035758251039 + ... + 8035758251078.

It is an arithmetic number, because the mean of its divisors is an integer number (56250307757413).

Almost surely, 2^{321430330042340} is an apocalyptic number.

It is an amenable number.

321430330042340 is an abundant number, since it is smaller than the sum of its proper divisors (353573363046616).

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

321430330042340 is a wasteful number, since it uses less digits than its factorization.

321430330042340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16071516502126 (or 16071516502124 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 32.

Adding to 321430330042340 its reverse (43240033034123), we get a palindrome (364670363076463).

The spelling of 321430330042340 in words is "three hundred twenty-one trillion, four hundred thirty billion, three hundred thirty million, forty-two thousand, three hundred forty".