2120103303520 has 96 divisors (see below), whose sum is σ = 5041901985120. Its totient is φ = 842437509120.

The previous prime is 2120103303509. The next prime is 2120103303559. The reversal of 2120103303520 is 253033010212.

It is a junction number, because it is equal to n+sod(n) for n = 2120103303491 and 2120103303500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26864439 + ... + 26943241.

It is an arithmetic number, because the mean of its divisors is an integer number (52519812345).

Almost surely, 2^{2120103303520} is an apocalyptic number.

2120103303520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2120103303520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2520950992560).

2120103303520 is an abundant number, since it is smaller than the sum of its proper divisors (2921798681600).

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

2120103303520 is a wasteful number, since it uses less digits than its factorization.

2120103303520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79928 (or 79920 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

Adding to 2120103303520 its reverse (253033010212), we get a palindrome (2373136313732).

The spelling of 2120103303520 in words is "two trillion, one hundred twenty billion, one hundred three million, three hundred three thousand, five hundred twenty".