11516102111 has 4 divisors (see below), whose sum is σ = 11827348152. Its totient is φ = 11204856072.

The previous prime is 11516102083. The next prime is 11516102119. The reversal of 11516102111 is 11120161511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11120161511 = 6761 ⋅1644751.

It is a cyclic number.

It is not a de Polignac number, because 11516102111 - 2²² = 11511907807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11516102119) 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, 155622965 + ... + 155623038.

It is an arithmetic number, because the mean of its divisors is an integer number (2956837038).

Almost surely, 2^11516102111 is an apocalyptic number.

11516102111 is a deficient number, since it is larger than the sum of its proper divisors (311246041).

11516102111 is an equidigital number, since it uses as much as digits as its factorization.

11516102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311246040.

The product of its (nonzero) digits is 60, while the sum is 20.

Adding to 11516102111 its reverse (11120161511), we get a palindrome (22636263622).

The spelling of 11516102111 in words is "eleven billion, five hundred sixteen million, one hundred two thousand, one hundred eleven".