11140420111 has 2 divisors, whose sum is σ = 11140420112. Its totient is φ = 11140420110.

The previous prime is 11140420103. The next prime is 11140420117. The reversal of 11140420111 is 11102404111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11140420111 - 2³ = 11140420103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11140420117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5570210055 + 5570210056.

It is an arithmetic number, because the mean of its divisors is an integer number (5570210056).

Almost surely, 2^11140420111 is an apocalyptic number.

11140420111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11140420111 is an equidigital number, since it uses as much as digits as its factorization.

11140420111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11140420111 its reverse (11102404111), we get a palindrome (22242824222).

The spelling of 11140420111 in words is "eleven billion, one hundred forty million, four hundred twenty thousand, one hundred eleven".