11117841185 has 12 divisors (see below), whose sum is σ = 14664525204. Its totient is φ = 8085702240.

The previous prime is 11117841179. The next prime is 11117841277. The reversal of 11117841185 is 58114871111.

It can be written as a sum of positive squares in 2 ways, for example, as 3810839824 + 7307001361 = 61732^2 + 85481^2 .

It is not a de Polignac number, because 11117841185 - 2¹⁰ = 11117840161 is a prime.

It is a super-2 number, since 2×11117841185² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9187694 + ... + 9188903.

It is an arithmetic number, because the mean of its divisors is an integer number (1222043767).

Almost surely, 2^11117841185 is an apocalyptic number.

It is an amenable number.

11117841185 is a deficient number, since it is larger than the sum of its proper divisors (3546684019).

11117841185 is a wasteful number, since it uses less digits than its factorization.

11117841185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18376624 (or 18376613 counting only the distinct ones).

The product of its digits is 8960, while the sum is 38.

The spelling of 11117841185 in words is "eleven billion, one hundred seventeen million, eight hundred forty-one thousand, one hundred eighty-five".