1101280 has 24 divisors (see below), whose sum is σ = 2602152. Its totient is φ = 440448.

The previous prime is 1101253. The next prime is 1101283. The reversal of 1101280 is 821011.

It is a self number, because there is not a number n which added to its sum of digits gives 1101280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3282 + ... + 3601.

It is an arithmetic number, because the mean of its divisors is an integer number (108423).

2^1101280 is an apocalyptic number.

1101280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101280 is an abundant number, since it is smaller than the sum of its proper divisors (1500872).

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

1101280 is an equidigital number, since it uses as much as digits as its factorization.

1101280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6898 (or 6890 counting only the distinct ones).

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

The square root of 1101280 is about 1049.4188868131. The cubic root of 1101280 is about 103.2680359810.

Adding to 1101280 its reverse (821011), we get a palindrome (1922291).

The spelling of 1101280 in words is "one million, one hundred one thousand, two hundred eighty".