11113280 has 28 divisors (see below), whose sum is σ = 26464260. Its totient is φ = 4445184.

The previous prime is 11113273. The next prime is 11113321. The reversal of 11113280 is 8231111.

It can be written as a sum of positive squares in 2 ways, for example, as 1577536 + 9535744 = 1256^2 + 3088^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17045 + ... + 17684.

Almost surely, 2^11113280 is an apocalyptic number.

11113280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11113280 is an abundant number, since it is smaller than the sum of its proper divisors (15350980).

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

11113280 is an equidigital number, since it uses as much as digits as its factorization.

11113280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34746 (or 34736 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 11113280 is about 3333.6586507919. The cubic root of 11113280 is about 223.1588350063.

Adding to 11113280 its reverse (8231111), we get a palindrome (19344391).

The spelling of 11113280 in words is "eleven million, one hundred thirteen thousand, two hundred eighty".