11117730 has 64 divisors (see below), whose sum is σ = 29756160. Its totient is φ = 2639616.

The previous prime is 11117699. The next prime is 11117737. The reversal of 11117730 is 3771111.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 11117697 and 11117706.

It is not an unprimeable number, because it can be changed into a prime (11117737) 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, 10819 + ... + 11801.

It is an arithmetic number, because the mean of its divisors is an integer number (464940).

Almost surely, 2^11117730 is an apocalyptic number.

11117730 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 11117730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14878080).

11117730 is an abundant number, since it is smaller than the sum of its proper divisors (18638430).

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

11117730 is a wasteful number, since it uses less digits than its factorization.

11117730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035.

The product of its (nonzero) digits is 147, while the sum is 21.

The square root of 11117730 is about 3334.3260188530. The cubic root of 11117730 is about 223.1886169218.

Adding to 11117730 its reverse (3771111), we get a palindrome (14888841).

The spelling of 11117730 in words is "eleven million, one hundred seventeen thousand, seven hundred thirty".