321420233341040 has 20 divisors (see below), whose sum is σ = 747302042518104. Its totient is φ = 128568093336384.

The previous prime is 321420233341027. The next prime is 321420233341061. The reversal of 321420233341040 is 40143332024123.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 321420233340988 and 321420233341006.

It is a congruent number.

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, 2008876458302 + ... + 2008876458461.

Almost surely, 2^{321420233341040} is an apocalyptic number.

It is an amenable number.

321420233341040 is an abundant number, since it is smaller than the sum of its proper divisors (425881809177064).

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

321420233341040 is a wasteful number, since it uses less digits than its factorization.

321420233341040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4017752916776 (or 4017752916770 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 321420233341040 its reverse (40143332024123), we get a palindrome (361563565365163).

The spelling of 321420233341040 in words is "three hundred twenty-one trillion, four hundred twenty billion, two hundred thirty-three million, three hundred forty-one thousand, forty".