11308481 has 4 divisors (see below), whose sum is σ = 11335764. Its totient is φ = 11281200.

The previous prime is 11308469. The next prime is 11308483. The reversal of 11308481 is 18480311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18480311 = 2593 ⋅7127.

It can be written as a sum of positive squares in 2 ways, for example, as 152881 + 11155600 = 391^2 + 3340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11308481 is a prime.

It is a super-2 number, since 2×11308481² = 255763485054722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11308481.

It is not an unprimeable number, because it can be changed into a prime (11308483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13010 + ... + 13851.

It is an arithmetic number, because the mean of its divisors is an integer number (2833941).

Almost surely, 2^11308481 is an apocalyptic number.

It is an amenable number.

11308481 is a deficient number, since it is larger than the sum of its proper divisors (27283).

11308481 is an equidigital number, since it uses as much as digits as its factorization.

11308481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27282.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 11308481 is about 3362.8084988592. The cubic root of 11308481 is about 224.4578287628.

Adding to 11308481 its reverse (18480311), we get a palindrome (29788792).

The spelling of 11308481 in words is "eleven million, three hundred eight thousand, four hundred eighty-one".