11230021987 has 8 divisors (see below), whose sum is σ = 11295622800. Its totient is φ = 11164453344.

The previous prime is 11230021967. The next prime is 11230022003. The reversal of 11230021987 is 78912003211.

11230021987 is digitally balanced in base 2, 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 a cyclic number.

It is not a de Polignac number, because 11230021987 - 2¹⁵ = 11229989219 is a prime.

It is a super-2 number, since 2×11230021987² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11230021937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1291089 + ... + 1299757.

It is an arithmetic number, because the mean of its divisors is an integer number (1411952850).

Almost surely, 2^11230021987 is an apocalyptic number.

11230021987 is a deficient number, since it is larger than the sum of its proper divisors (65600813).

11230021987 is an equidigital number, since it uses as much as digits as its factorization.

11230021987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16085.

The product of its (nonzero) digits is 6048, while the sum is 34.

The spelling of 11230021987 in words is "eleven billion, two hundred thirty million, twenty-one thousand, nine hundred eighty-seven".