321045034220 has 48 divisors (see below), whose sum is σ = 675105211200. Its totient is φ = 128244695040.

The previous prime is 321045034207. The next prime is 321045034259. The reversal of 321045034220 is 22430540123.

It is a self number, because there is not a number n which added to its sum of digits gives 321045034220.

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 15 ways as a sum of consecutive naturals, for example, 71041121 + ... + 71045639.

It is an arithmetic number, because the mean of its divisors is an integer number (14064691900).

Almost surely, 2^321045034220 is an apocalyptic number.

It is an amenable number.

321045034220 is an abundant number, since it is smaller than the sum of its proper divisors (354060176980).

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

321045034220 is a wasteful number, since it uses less digits than its factorization.

321045034220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8538 (or 8536 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 321045034220 its reverse (22430540123), we get a palindrome (343475574343).

The spelling of 321045034220 in words is "three hundred twenty-one billion, forty-five million, thirty-four thousand, two hundred twenty".