4511111113 has 4 divisors (see below), whose sum is σ = 4511848068. Its totient is φ = 4510374160.

The previous prime is 4511111063. The next prime is 4511111147. The reversal of 4511111113 is 3111111154.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3111111154 = 2 ⋅1555555577.

It can be written as a sum of positive squares in 2 ways, for example, as 1978203529 + 2532907584 = 44477^2 + 50328^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4511111113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4511111173) 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, 359218 + ... + 371563.

It is an arithmetic number, because the mean of its divisors is an integer number (1127962017).

Almost surely, 2^4511111113 is an apocalyptic number.

It is an amenable number.

4511111113 is a deficient number, since it is larger than the sum of its proper divisors (736955).

4511111113 is an equidigital number, since it uses as much as digits as its factorization.

4511111113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736954.

The product of its digits is 60, while the sum is 19.

The square root of 4511111113 is about 67164.8056127612. The cubic root of 4511111113 is about 1652.3213256389.

Adding to 4511111113 its reverse (3111111154), we get a palindrome (7622222267).

The spelling of 4511111113 in words is "four billion, five hundred eleven million, one hundred eleven thousand, one hundred thirteen".