3103221021320 has 128 divisors (see below), whose sum is σ = 7996863974400. Its totient is φ = 1061676288000.

The previous prime is 3103221021283. The next prime is 3103221021331. The reversal of 3103221021320 is 231201223013.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3103221021292 and 3103221021301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 543373265 + ... + 543378975.

It is an arithmetic number, because the mean of its divisors is an integer number (62475499800).

Almost surely, 2^{3103221021320} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3103221021320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3998431987200).

3103221021320 is an abundant number, since it is smaller than the sum of its proper divisors (4893642953080).

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

3103221021320 is a wasteful number, since it uses less digits than its factorization.

3103221021320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9559 (or 9555 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 3103221021320 its reverse (231201223013), we get a palindrome (3334422244333).

The spelling of 3103221021320 in words is "three trillion, one hundred three billion, two hundred twenty-one million, twenty-one thousand, three hundred twenty".