5111111113 has 8 divisors (see below), whose sum is σ = 5150483496. Its totient is φ = 5071872000.

The previous prime is 5111111101. The next prime is 5111111141. The reversal of 5111111113 is 3111111115.

It can be written as a sum of positive squares in 4 ways, for example, as 1516868809 + 3594242304 = 38947^2 + 59952^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5111111113 is a prime.

It is a super-2 number, since 2×5111111113² = 52246913618864197538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5111181113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44373 + ... + 110413.

It is an arithmetic number, because the mean of its divisors is an integer number (643810437).

Almost surely, 2^5111111113 is an apocalyptic number.

It is an amenable number.

5111111113 is a deficient number, since it is larger than the sum of its proper divisors (39372383).

5111111113 is a wasteful number, since it uses less digits than its factorization.

5111111113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66635.

The product of its digits is 15, while the sum is 16.

The square root of 5111111113 is about 71492.0353116345. The cubic root of 5111111113 is about 1722.5497510001.

Adding to 5111111113 its reverse (3111111115), we get a palindrome (8222222228).

The spelling of 5111111113 in words is "five billion, one hundred eleven million, one hundred eleven thousand, one hundred thirteen".