2031312211 has 16 divisors (see below), whose sum is σ = 2170151200. Its totient is φ = 1895851008.

The previous prime is 2031312181. The next prime is 2031312233. The reversal of 2031312211 is 1122131302.

It is not a de Polignac number, because 2031312211 - 2²³ = 2022923603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2031312251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419641 + ... + 424453.

It is an arithmetic number, because the mean of its divisors is an integer number (135634450).

Almost surely, 2^2031312211 is an apocalyptic number.

2031312211 is a deficient number, since it is larger than the sum of its proper divisors (138838989).

2031312211 is a wasteful number, since it uses less digits than its factorization.

2031312211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5158.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2031312211 is about 45070.0811070937. The cubic root of 2031312211 is about 1266.4621838042.

Adding to 2031312211 its reverse (1122131302), we get a palindrome (3153443513).

The spelling of 2031312211 in words is "two billion, thirty-one million, three hundred twelve thousand, two hundred eleven".