1111111382111 has 2 divisors, whose sum is σ = 1111111382112. Its totient is φ = 1111111382110.

The previous prime is 1111111382107. The next prime is 1111111382159. The reversal of 1111111382111 is 1112831111111.

It is a m-pointer prime, because the next prime (1111111382159) can be obtained adding 1111111382111 to its product of digits (48).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111111382111 - 2² = 1111111382107 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111111382011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555555691055 + 555555691056.

It is an arithmetic number, because the mean of its divisors is an integer number (555555691056).

Almost surely, 2^{1111111382111} is an apocalyptic number.

1111111382111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111111382111 is an equidigital number, since it uses as much as digits as its factorization.

1111111382111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48, while the sum is 23.

Adding to 1111111382111 its reverse (1112831111111), we get a palindrome (2223942493222).

The spelling of 1111111382111 in words is "one trillion, one hundred eleven billion, one hundred eleven million, three hundred eighty-two thousand, one hundred eleven".