2120321302112 has 96 divisors (see below), whose sum is σ = 4627533812832. Its totient is φ = 950246129664.

The previous prime is 2120321302079. The next prime is 2120321302117. The reversal of 2120321302112 is 2112031230212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120321302117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1642943 + ... + 2634369.

It is an arithmetic number, because the mean of its divisors is an integer number (48203477217).

Almost surely, 2^{2120321302112} 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 2120321302112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2313766906416).

2120321302112 is an abundant number, since it is smaller than the sum of its proper divisors (2507212510720).

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

2120321302112 is a wasteful number, since it uses less digits than its factorization.

2120321302112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991600 (or 991592 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2120321302112 its reverse (2112031230212), we get a palindrome (4232352532324).

The spelling of 2120321302112 in words is "two trillion, one hundred twenty billion, three hundred twenty-one million, three hundred two thousand, one hundred twelve".