111111100000005 has 16 divisors (see below), whose sum is σ = 203174582857344. Its totient is φ = 50793645714240.

The previous prime is 111111099999997. The next prime is 111111100000007. The reversal of 111111100000005 is 500000001111111.

It is a happy number.

It is not a de Polignac number, because 111111100000005 - 2³ = 111111099999997 is a prime.

It is a super-2 number, since 2×111111100000005² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111111100000007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529100476086 + ... + 529100476295.

It is an arithmetic number, because the mean of its divisors is an integer number (12698411428584).

Almost surely, 2^{111111100000005} is an apocalyptic number.

111111100000005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111111100000005 is a deficient number, since it is larger than the sum of its proper divisors (92063482857339).

111111100000005 is a wasteful number, since it uses less digits than its factorization.

111111100000005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058200952396.

The product of its (nonzero) digits is 5, while the sum is 12.

Adding to 111111100000005 its reverse (500000001111111), we get a palindrome (611111101111116).

The spelling of 111111100000005 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred million, five", and thus it is an aban number.