2120320356 has 96 divisors (see below), whose sum is σ = 6294220800. Its totient is φ = 550720800.

The previous prime is 2120320331. The next prime is 2120320373. The reversal of 2120320356 is 6530230212.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21861 + ... + 68691.

It is an arithmetic number, because the mean of its divisors is an integer number (65564800).

Almost surely, 2^2120320356 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 2120320356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3147110400).

2120320356 is an abundant number, since it is smaller than the sum of its proper divisors (4173900444).

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

2120320356 is a wasteful number, since it uses less digits than its factorization.

2120320356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46870 (or 46854 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 2120320356 is about 46046.9364453272. The cubic root of 2120320356 is about 1284.6963619156.

Adding to 2120320356 its reverse (6530230212), we get a palindrome (8650550568).

The spelling of 2120320356 in words is "two billion, one hundred twenty million, three hundred twenty thousand, three hundred fifty-six".