11611144115 has 4 divisors (see below), whose sum is σ = 13933372944. Its totient is φ = 9288915288.

The previous prime is 11611144099. The next prime is 11611144121. The reversal of 11611144115 is 51144111611.

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: 51144111611 = 139 ⋅367943249.

It is a cyclic number.

It is not a de Polignac number, because 11611144115 - 2⁴ = 11611144099 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1161114407 + ... + 1161114416.

It is an arithmetic number, because the mean of its divisors is an integer number (3483343236).

Almost surely, 2^11611144115 is an apocalyptic number.

11611144115 is a deficient number, since it is larger than the sum of its proper divisors (2322228829).

11611144115 is an equidigital number, since it uses as much as digits as its factorization.

11611144115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322228828.

The product of its digits is 480, while the sum is 26.

Adding to 11611144115 its reverse (51144111611), we get a palindrome (62755255726).

The spelling of 11611144115 in words is "eleven billion, six hundred eleven million, one hundred forty-four thousand, one hundred fifteen".