2111330213 has 4 divisors (see below), whose sum is σ = 2111488428. Its totient is φ = 2111172000.

The previous prime is 2111330209. The next prime is 2111330251. The reversal of 2111330213 is 3120331112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 776012449 + 1335317764 = 27857^2 + 36542^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111330213 - 2² = 2111330209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111330191 and 2111330200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111330203) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 57038 + ... + 86463.

It is an arithmetic number, because the mean of its divisors is an integer number (527872107).

Almost surely, 2^2111330213 is an apocalyptic number.

It is an amenable number.

2111330213 is a deficient number, since it is larger than the sum of its proper divisors (158215).

2111330213 is a wasteful number, since it uses less digits than its factorization.

2111330213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158214.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2111330213 is about 45949.2134100248. The cubic root of 2111330213 is about 1282.8780885676.

Adding to 2111330213 its reverse (3120331112), we get a palindrome (5231661325).

The spelling of 2111330213 in words is "two billion, one hundred eleven million, three hundred thirty thousand, two hundred thirteen".