2120311216 has 40 divisors (see below), whose sum is σ = 4320687744. Its totient is φ = 1006586880.

The previous prime is 2120311183. The next prime is 2120311241. The reversal of 2120311216 is 6121130212.

It is a junction number, because it is equal to n+sod(n) for n = 2120311193 and 2120311202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14041 + ... + 66616.

Almost surely, 2^2120311216 is an apocalyptic number.

It is an amenable number.

2120311216 is an abundant number, since it is smaller than the sum of its proper divisors (2200376528).

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

2120311216 is a wasteful number, since it uses less digits than its factorization.

2120311216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80749 (or 80743 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 2120311216 is about 46046.8371986611. The cubic root of 2120311216 is about 1284.6945159458.

Adding to 2120311216 its reverse (6121130212), we get a palindrome (8241441428).

The spelling of 2120311216 in words is "two billion, one hundred twenty million, three hundred eleven thousand, two hundred sixteen".