11229859987 has 2 divisors, whose sum is σ = 11229859988. Its totient is φ = 11229859986.

The previous prime is 11229859981. The next prime is 11229860029. The reversal of 11229859987 is 78995892211.

It is a weak prime.

It is an emirp because it is prime and its reverse (78995892211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11229859987 - 2⁷ = 11229859859 is a prime.

It is a super-2 number, since 2×11229859987² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11229859981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5614929993 + 5614929994.

It is an arithmetic number, because the mean of its divisors is an integer number (5614929994).

Almost surely, 2^11229859987 is an apocalyptic number.

11229859987 is a deficient number, since it is larger than the sum of its proper divisors (1).

11229859987 is an equidigital number, since it uses as much as digits as its factorization.

11229859987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 61.

The spelling of 11229859987 in words is "eleven billion, two hundred twenty-nine million, eight hundred fifty-nine thousand, nine hundred eighty-seven".