11114421511 has 2 divisors, whose sum is σ = 11114421512. Its totient is φ = 11114421510.

The previous prime is 11114421509. The next prime is 11114421529. The reversal of 11114421511 is 11512441111.

It is a happy number.

11114421511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11114421511 - 2¹ = 11114421509 is a prime.

Together with 11114421509, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11114421541) 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, 5557210755 + 5557210756.

It is an arithmetic number, because the mean of its divisors is an integer number (5557210756).

Almost surely, 2^11114421511 is an apocalyptic number.

11114421511 is a deficient number, since it is larger than the sum of its proper divisors (1).

11114421511 is an equidigital number, since it uses as much as digits as its factorization.

11114421511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 160, while the sum is 22.

Adding to 11114421511 its reverse (11512441111), we get a palindrome (22626862622).

The spelling of 11114421511 in words is "eleven billion, one hundred fourteen million, four hundred twenty-one thousand, five hundred eleven".