11142142211 has 2 divisors, whose sum is σ = 11142142212. Its totient is φ = 11142142210.

The previous prime is 11142142199. The next prime is 11142142213. The reversal of 11142142211 is 11224124111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11142142211 - 2⁶ = 11142142147 is a prime.

Together with 11142142213, 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 (11142142213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5571071105 + 5571071106.

It is an arithmetic number, because the mean of its divisors is an integer number (5571071106).

Almost surely, 2^11142142211 is an apocalyptic number.

11142142211 is a deficient number, since it is larger than the sum of its proper divisors (1).

11142142211 is an equidigital number, since it uses as much as digits as its factorization.

11142142211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 128, while the sum is 20.

Adding to 11142142211 its reverse (11224124111), we get a palindrome (22366266322).

The spelling of 11142142211 in words is "eleven billion, one hundred forty-two million, one hundred forty-two thousand, two hundred eleven".