2111322321 has 16 divisors (see below), whose sum is σ = 3167481600. Its totient is φ = 1389729744.

The previous prime is 2111322319. The next prime is 2111322331. The reversal of 2111322321 is 1232231112.

2111322321 is a `hidden beast` number, since 21 + 1 + 1 + 322 + 321 = 666.

It is not a de Polignac number, because 2111322321 - 2¹ = 2111322319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2111322294 and 2111322303.

It is not an unprimeable number, because it can be changed into a prime (2111322331) 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, 492786 + ... + 497051.

It is an arithmetic number, because the mean of its divisors is an integer number (197967600).

Almost surely, 2^2111322321 is an apocalyptic number.

It is an amenable number.

2111322321 is a deficient number, since it is larger than the sum of its proper divisors (1056159279).

2111322321 is an equidigital number, since it uses as much as digits as its factorization.

2111322321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989925 (or 989919 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 2111322321 is about 45949.1275325223. The cubic root of 2111322321 is about 1282.8764901304.

Adding to 2111322321 its reverse (1232231112), we get a palindrome (3343553433).

It can be divided in two parts, 21113 and 22321, that added together give a palindrome (43434).

The spelling of 2111322321 in words is "two billion, one hundred eleven million, three hundred twenty-two thousand, three hundred twenty-one".