11160820 has 48 divisors (see below), whose sum is σ = 25881408. Its totient is φ = 4008960.

The previous prime is 11160811. The next prime is 11160839. The reversal of 11160820 is 2806111.

11160820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21079 + ... + 21601.

It is an arithmetic number, because the mean of its divisors is an integer number (539196).

Almost surely, 2^11160820 is an apocalyptic number.

11160820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11160820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12940704).

11160820 is an abundant number, since it is smaller than the sum of its proper divisors (14720588).

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

11160820 is a wasteful number, since it uses less digits than its factorization.

11160820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 11160820 is about 3340.7813457334. The cubic root of 11160820 is about 223.4765893598.

Adding to 11160820 its reverse (2806111), we get a palindrome (13966931).

It can be divided in two parts, 111608 and 20, that added together give a triangular number (111628 = T₄₇₂).

The spelling of 11160820 in words is "eleven million, one hundred sixty thousand, eight hundred twenty".