211111231411 has 2 divisors, whose sum is σ = 211111231412. Its totient is φ = 211111231410.

The previous prime is 211111231349. The next prime is 211111231459. The reversal of 211111231411 is 114132111112.

It is a m-pointer prime, because the next prime (211111231459) can be obtained adding 211111231411 to its product of digits (48).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211111231411 - 2¹¹ = 211111229363 is a prime.

It is not a weakly prime, because it can be changed into another prime (211111231511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105555615705 + 105555615706.

It is an arithmetic number, because the mean of its divisors is an integer number (105555615706).

Almost surely, 2^211111231411 is an apocalyptic number.

211111231411 is a deficient number, since it is larger than the sum of its proper divisors (1).

211111231411 is an equidigital number, since it uses as much as digits as its factorization.

211111231411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48, while the sum is 19.

Adding to 211111231411 its reverse (114132111112), we get a palindrome (325243342523).

The spelling of 211111231411 in words is "two hundred eleven billion, one hundred eleven million, two hundred thirty-one thousand, four hundred eleven".