11191230 has 64 divisors (see below), whose sum is σ = 30139200. Its totient is φ = 2954880.

The previous prime is 11191189. The next prime is 11191231. The reversal of 11191230 is 3219111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11191231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48756 + ... + 48984.

It is an arithmetic number, because the mean of its divisors is an integer number (470925).

Almost surely, 2^11191230 is an apocalyptic number.

11191230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11191230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15069600).

11191230 is an abundant number, since it is smaller than the sum of its proper divisors (18947970).

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

11191230 is a wasteful number, since it uses less digits than its factorization.

11191230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The square root of 11191230 is about 3345.3295801759. The cubic root of 11191230 is about 223.6793749407.

The spelling of 11191230 in words is "eleven million, one hundred ninety-one thousand, two hundred thirty".