11119987 has 2 divisors, whose sum is σ = 11119988. Its totient is φ = 11119986.

The previous prime is 11119973. The next prime is 11120009. The reversal of 11119987 is 78991111.

It is a weak prime.

It is an emirp because it is prime and its reverse (78991111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11119987 - 2⁷ = 11119859 is a prime.

It is a super-2 number, since 2×11119987² = 247308221760338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11119957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5559993 + 5559994.

It is an arithmetic number, because the mean of its divisors is an integer number (5559994).

Almost surely, 2^11119987 is an apocalyptic number.

11119987 is a deficient number, since it is larger than the sum of its proper divisors (1).

11119987 is an equidigital number, since it uses as much as digits as its factorization.

11119987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 37.

The square root of 11119987 is about 3334.6644508856. The cubic root of 11119987 is about 223.2037190042.

The spelling of 11119987 in words is "eleven million, one hundred nineteen thousand, nine hundred eighty-seven".