116512111 has 4 divisors (see below), whose sum is σ = 120529800. Its totient is φ = 112494424.

The previous prime is 116512103. The next prime is 116512117. The reversal of 116512111 is 111215611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111215611 = 13 ⋅8555047.

It is a cyclic number.

It is not a de Polignac number, because 116512111 - 2³ = 116512103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116512117) 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, 2008801 + ... + 2008858.

It is an arithmetic number, because the mean of its divisors is an integer number (30132450).

Almost surely, 2^116512111 is an apocalyptic number.

116512111 is a deficient number, since it is larger than the sum of its proper divisors (4017689).

116512111 is an equidigital number, since it uses as much as digits as its factorization.

116512111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4017688.

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

The square root of 116512111 is about 10794.0775891227. The cubic root of 116512111 is about 488.4165335867.

Adding to 116512111 its reverse (111215611), we get a palindrome (227727722).

The spelling of 116512111 in words is "one hundred sixteen million, five hundred twelve thousand, one hundred eleven".