11512016387 has 2 divisors, whose sum is σ = 11512016388. Its totient is φ = 11512016386.

The previous prime is 11512016371. The next prime is 11512016389. The reversal of 11512016387 is 78361021511.

11512016387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (78361021511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11512016387 - 2⁴ = 11512016371 is a prime.

Together with 11512016389, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11512016389) 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 as a sum of consecutive naturals, namely, 5756008193 + 5756008194.

It is an arithmetic number, because the mean of its divisors is an integer number (5756008194).

Almost surely, 2^11512016387 is an apocalyptic number.

11512016387 is a deficient number, since it is larger than the sum of its proper divisors (1).

11512016387 is an equidigital number, since it uses as much as digits as its factorization.

11512016387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 35.

Adding to 11512016387 its reverse (78361021511), we get a palindrome (89873037898).

The spelling of 11512016387 in words is "eleven billion, five hundred twelve million, sixteen thousand, three hundred eighty-seven".