321002012042320 has 40 divisors (see below), whose sum is σ = 852948203428224. Its totient is φ = 110057832700032.

The previous prime is 321002012042213. The next prime is 321002012042333. The reversal of 321002012042320 is 23240210200123.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 321002012042291 and 321002012042300.

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 7 ways as a sum of consecutive naturals, for example, 286608938764 + ... + 286608939883.

Almost surely, 2^{321002012042320} is an apocalyptic number.

It is an amenable number.

321002012042320 is an abundant number, since it is smaller than the sum of its proper divisors (531946191385904).

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

321002012042320 is a wasteful number, since it uses less digits than its factorization.

321002012042320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573217878667 (or 573217878661 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 321002012042320 its reverse (23240210200123), we get a palindrome (344242222242443).

The spelling of 321002012042320 in words is "three hundred twenty-one trillion, two billion, twelve million, forty-two thousand, three hundred twenty".