11231887 has 2 divisors, whose sum is σ = 11231888. Its totient is φ = 11231886.

The previous prime is 11231881. The next prime is 11231893. The reversal of 11231887 is 78813211.

It is a happy number.

11231887 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (11231881) and next prime (11231893).

It is an emirp because it is prime and its reverse (78813211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11231887 - 2³ = 11231879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11231881) 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 as a sum of consecutive naturals, namely, 5615943 + 5615944.

It is an arithmetic number, because the mean of its divisors is an integer number (5615944).

Almost surely, 2^11231887 is an apocalyptic number.

11231887 is a deficient number, since it is larger than the sum of its proper divisors (1).

11231887 is an equidigital number, since it uses as much as digits as its factorization.

11231887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 31.

The square root of 11231887 is about 3351.4007519245. The cubic root of 11231887 is about 223.9499183849.

The spelling of 11231887 in words is "eleven million, two hundred thirty-one thousand, eight hundred eighty-seven".