11087231 has 4 divisors (see below), whose sum is σ = 11097432. Its totient is φ = 11077032.

The previous prime is 11087207. The next prime is 11087267. The reversal of 11087231 is 13278011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11087231 - 2¹⁴ = 11070847 is a prime.

It is a super-2 number, since 2×11087231² = 245853382494722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11087197 and 11087206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11087201) 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, 3245 + ... + 5718.

It is an arithmetic number, because the mean of its divisors is an integer number (2774358).

Almost surely, 2^11087231 is an apocalyptic number.

11087231 is a deficient number, since it is larger than the sum of its proper divisors (10201).

11087231 is an equidigital number, since it uses as much as digits as its factorization.

11087231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10200.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 11087231 is about 3329.7493899692. The cubic root of 11087231 is about 222.9843406996.

The spelling of 11087231 in words is "eleven million, eighty-seven thousand, two hundred thirty-one".