11191085036 has 24 divisors (see below), whose sum is σ = 20545086240. Its totient is φ = 5326496000.

The previous prime is 11191085011. The next prime is 11191085039. The reversal of 11191085036 is 63058019111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11191084987 and 11191085005.

It is not an unprimeable number, because it can be changed into a prime (11191085039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671165 + ... + 687636.

It is an arithmetic number, because the mean of its divisors is an integer number (856045260).

Almost surely, 2^11191085036 is an apocalyptic number.

It is an amenable number.

11191085036 is a deficient number, since it is larger than the sum of its proper divisors (9354001204).

11191085036 is a wasteful number, since it uses less digits than its factorization.

11191085036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358905 (or 1358903 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 35.

The spelling of 11191085036 in words is "eleven billion, one hundred ninety-one million, eighty-five thousand, thirty-six".