2111322113 has 4 divisors (see below), whose sum is σ = 2116982868. Its totient is φ = 2105661360.

The previous prime is 2111322097. The next prime is 2111322127. The reversal of 2111322113 is 3112231112.

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 1275418369 + 835903744 = 35713^2 + 28912^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111322113 - 2⁴ = 2111322097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111322091 and 2111322100.

It is not an unprimeable number, because it can be changed into a prime (2111322173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2829818 + ... + 2830563.

It is an arithmetic number, because the mean of its divisors is an integer number (529245717).

Almost surely, 2^2111322113 is an apocalyptic number.

It is an amenable number.

2111322113 is a deficient number, since it is larger than the sum of its proper divisors (5660755).

2111322113 is an equidigital number, since it uses as much as digits as its factorization.

2111322113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5660754.

The product of its digits is 72, while the sum is 17.

The square root of 2111322113 is about 45949.1252691496. The cubic root of 2111322113 is about 1282.8764480022.

Adding to 2111322113 its reverse (3112231112), we get a palindrome (5223553225).

The spelling of 2111322113 in words is "two billion, one hundred eleven million, three hundred twenty-two thousand, one hundred thirteen".