11108091993 has 16 divisors (see below), whose sum is σ = 15178430400. Its totient is φ = 7221726720.

The previous prime is 11108091989. The next prime is 11108092013. The reversal of 11108091993 is 39919080111.

It is a happy number.

It is not a de Polignac number, because 11108091993 - 2² = 11108091989 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11108091913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294513 + ... + 330081.

It is an arithmetic number, because the mean of its divisors is an integer number (948651900).

Almost surely, 2^11108091993 is an apocalyptic number.

It is an amenable number.

11108091993 is a deficient number, since it is larger than the sum of its proper divisors (4070338407).

11108091993 is a wasteful number, since it uses less digits than its factorization.

11108091993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38152.

The product of its (nonzero) digits is 17496, while the sum is 42.

The spelling of 11108091993 in words is "eleven billion, one hundred eight million, ninety-one thousand, nine hundred ninety-three".