2111430113 has 4 divisors (see below), whose sum is σ = 2273847828. Its totient is φ = 1949012400.

The previous prime is 2111430071. The next prime is 2111430143. The reversal of 2111430113 is 3110341112.

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 94342369 + 2017087744 = 9713^2 + 44912^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111430113 - 2¹⁸ = 2111167969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2111430091 and 2111430100.

It is not an unprimeable number, because it can be changed into a prime (2111430143) 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, 81208838 + ... + 81208863.

It is an arithmetic number, because the mean of its divisors is an integer number (568461957).

Almost surely, 2^2111430113 is an apocalyptic number.

It is an amenable number.

2111430113 is a deficient number, since it is larger than the sum of its proper divisors (162417715).

2111430113 is a wasteful number, since it uses less digits than its factorization.

2111430113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162417714.

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

The square root of 2111430113 is about 45950.3004669175. The cubic root of 2111430113 is about 1282.8983218624.

Adding to 2111430113 its reverse (3110341112), we get a palindrome (5221771225).

The spelling of 2111430113 in words is "two billion, one hundred eleven million, four hundred thirty thousand, one hundred thirteen".