5111111115 has 96 divisors (see below), whose sum is σ = 10451690496. Its totient is φ = 2282542080.

The previous prime is 5111111101. The next prime is 5111111141.

5111111115 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5111111115 - 2⁸ = 5111110859 is a prime.

It is a super-2 number, since 2×5111111115² = 52246913659753086450, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 389044 + ... + 401966.

It is an arithmetic number, because the mean of its divisors is an integer number (108871776).

Almost surely, 2^5111111115 is an apocalyptic number.

5111111115 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5111111115 is an abundant number, since it is smaller than the sum of its proper divisors (5340579381).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5111111115 is a wasteful number, since it uses less digits than its factorization.

5111111115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13009 (or 13006 counting only the distinct ones).

The product of its digits is 25, while the sum is 18.

The square root of 5111111115 is about 71492.0353256221. The cubic root of 5111111115 is about 1722.5497512248.

It can be divided in two parts, 51111 and 11115, that added together give a palindrome (62226).

The spelling of 5111111115 in words is "five billion, one hundred eleven million, one hundred eleven thousand, one hundred fifteen".