11120580 has 36 divisors (see below), whose sum is σ = 33732972. Its totient is φ = 2965440.

The previous prime is 11120579. The next prime is 11120581. The reversal of 11120580 is 8502111.

It is an interprime number because it is at equal distance from previous prime (11120579) and next prime (11120581).

It can be written as a sum of positive squares in 2 ways, for example, as 1498176 + 9622404 = 1224^2 + 3102^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (11120581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30711 + ... + 31070.

It is an arithmetic number, because the mean of its divisors is an integer number (937027).

Almost surely, 2^11120580 is an apocalyptic number.

11120580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11120580 is an abundant number, since it is smaller than the sum of its proper divisors (22612392).

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

11120580 is a wasteful number, since it uses less digits than its factorization.

11120580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61796 (or 61791 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 11120580 is about 3334.7533641935. The cubic root of 11120580 is about 223.2076865584.

Adding to 11120580 its reverse (8502111), we get a palindrome (19622691).

The spelling of 11120580 in words is "eleven million, one hundred twenty thousand, five hundred eighty".