11391108 has 48 divisors (see below), whose sum is σ = 28600320. Its totient is φ = 3517344.

The previous prime is 11391101. The next prime is 11391119. The reversal of 11391108 is 80119311.

It is not an unprimeable number, because it can be changed into a prime (11391101) 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, 10185 + ... + 11247.

It is an arithmetic number, because the mean of its divisors is an integer number (595840).

Almost surely, 2^11391108 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11391108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14300160).

11391108 is an abundant number, since it is smaller than the sum of its proper divisors (17209212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11391108 is a wasteful number, since it uses less digits than its factorization.

11391108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136 (or 1134 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 24.

The square root of 11391108 is about 3375.0715547970. The cubic root of 11391108 is about 225.0031802020.

The spelling of 11391108 in words is "eleven million, three hundred ninety-one thousand, one hundred eight".