2111322320 has 20 divisors (see below), whose sum is σ = 4908824580. Its totient is φ = 844528896.

The previous prime is 2111322319. The next prime is 2111322331. The reversal of 2111322320 is 232231112.

It can be written as a sum of positive squares in 2 ways, for example, as 935381056 + 1175941264 = 30584^2 + 34292^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13195685 + ... + 13195844.

It is an arithmetic number, because the mean of its divisors is an integer number (245441229).

Almost surely, 2^2111322320 is an apocalyptic number.

2111322320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111322320 is an abundant number, since it is smaller than the sum of its proper divisors (2797502260).

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

2111322320 is a wasteful number, since it uses less digits than its factorization.

2111322320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26391542 (or 26391536 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2111322320 is about 45949.1275216407. The cubic root of 2111322320 is about 1282.8764899278.

Adding to 2111322320 its reverse (232231112), we get a palindrome (2343553432).

The spelling of 2111322320 in words is "two billion, one hundred eleven million, three hundred twenty-two thousand, three hundred twenty".