11020180 has 24 divisors (see below), whose sum is σ = 23268168. Its totient is φ = 4384128.

The previous prime is 11020129. The next prime is 11020181. The reversal of 11020180 is 8102011.

It can be written as a sum of positive squares in 4 ways, for example, as 5317636 + 5702544 = 2306^2 + 2388^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11020180.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2542 + ... + 5338.

It is an arithmetic number, because the mean of its divisors is an integer number (969507).

Almost surely, 2^11020180 is an apocalyptic number.

11020180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11020180 is an abundant number, since it is smaller than the sum of its proper divisors (12247988).

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

11020180 is a wasteful number, since it uses less digits than its factorization.

11020180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003 (or 3001 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 11020180 is about 3319.6656458143. The cubic root of 11020180 is about 222.5339257279.

Adding to 11020180 its reverse (8102011), we get a palindrome (19122191).

The spelling of 11020180 in words is "eleven million, twenty thousand, one hundred eighty".