11380281 has 8 divisors (see below), whose sum is σ = 16553184. Its totient is φ = 6897120.

The previous prime is 11380277. The next prime is 11380289. The reversal of 11380281 is 18208311.

11380281 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11380281 - 2² = 11380277 is a prime.

It is a super-2 number, since 2×11380281² = 259021591277922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11380289) 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 7 ways as a sum of consecutive naturals, for example, 172396 + ... + 172461.

It is an arithmetic number, because the mean of its divisors is an integer number (2069148).

Almost surely, 2^11380281 is an apocalyptic number.

11380281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11380281 is a deficient number, since it is larger than the sum of its proper divisors (5172903).

11380281 is a wasteful number, since it uses less digits than its factorization.

11380281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344871.

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 11380281 is about 3373.4672074885. The cubic root of 11380281 is about 224.9318707308.

Adding to 11380281 its reverse (18208311), we get a palindrome (29588592).

The spelling of 11380281 in words is "eleven million, three hundred eighty thousand, two hundred eighty-one".