11115711107 has 4 divisors (see below), whose sum is σ = 11499011520. Its totient is φ = 10732410696.

The previous prime is 11115711071. The next prime is 11115711119. The reversal of 11115711107 is 70111751111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70111751111 = 52691 ⋅1330621.

It is a cyclic number.

It is not a de Polignac number, because 11115711107 - 2¹² = 11115707011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11115711197) 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, 191650163 + ... + 191650220.

It is an arithmetic number, because the mean of its divisors is an integer number (2874752880).

Almost surely, 2^11115711107 is an apocalyptic number.

11115711107 is a deficient number, since it is larger than the sum of its proper divisors (383300413).

11115711107 is an equidigital number, since it uses as much as digits as its factorization.

11115711107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383300412.

The product of its (nonzero) digits is 245, while the sum is 26.

The spelling of 11115711107 in words is "eleven billion, one hundred fifteen million, seven hundred eleven thousand, one hundred seven".