2120203312 has 80 divisors (see below), whose sum is σ = 4401504000. Its totient is φ = 986515200.

The previous prime is 2120203307. The next prime is 2120203321. The reversal of 2120203312 is 2133020212.

It is a Harshad number since it is a multiple of its sum of digits (16).

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 15 ways as a sum of consecutive naturals, for example, 6109923 + ... + 6110269.

It is an arithmetic number, because the mean of its divisors is an integer number (55018800).

Almost surely, 2^2120203312 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 2120203312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2200752000).

2120203312 is an abundant number, since it is smaller than the sum of its proper divisors (2281300688).

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

2120203312 is a wasteful number, since it uses less digits than its factorization.

2120203312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674 (or 668 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2120203312 is about 46045.6655071897. The cubic root of 2120203312 is about 1284.6727225997.

Adding to 2120203312 its reverse (2133020212), we get a palindrome (4253223524).

The spelling of 2120203312 in words is "two billion, one hundred twenty million, two hundred three thousand, three hundred twelve".