11071320 has 128 divisors (see below), whose sum is σ = 36771840. Its totient is φ = 2649600.

The previous prime is 11071283. The next prime is 11071321. The reversal of 11071320 is 2317011.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11071320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11071321) 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 31 ways as a sum of consecutive naturals, for example, 73245 + ... + 73395.

It is an arithmetic number, because the mean of its divisors is an integer number (287280).

Almost surely, 2^11071320 is an apocalyptic number.

11071320 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 11071320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18385920).

11071320 is an abundant number, since it is smaller than the sum of its proper divisors (25700520).

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

11071320 is a wasteful number, since it uses less digits than its factorization.

11071320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 15.

The square root of 11071320 is about 3327.3593133294. The cubic root of 11071320 is about 222.8776232704.

Adding to 11071320 its reverse (2317011), we get a palindrome (13388331).

The spelling of 11071320 in words is "eleven million, seventy-one thousand, three hundred twenty".