811111101111119 has 2 divisors, whose sum is σ = 811111101111120. Its totient is φ = 811111101111118.

The previous prime is 811111101111029. The next prime is 811111101111127. The reversal of 811111101111119 is 911111101111118.

811111101111119 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 811111101111119 - 2²⁴ = 811111084333903 is a prime.

It is a super-2 number, since 2×811111101111119² (a number of 31 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 811111101111091 and 811111101111100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (811111101111319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405555550555559 + 405555550555560.

It is an arithmetic number, because the mean of its divisors is an integer number (405555550555560).

Almost surely, 2^{811111101111119} is an apocalyptic number.

811111101111119 is a deficient number, since it is larger than the sum of its proper divisors (1).

811111101111119 is an equidigital number, since it uses as much as digits as its factorization.

811111101111119 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 29.

Subtracting 811111101111119 from its reverse (911111101111118), we obtain a palindrome (99999999999999).

The spelling of 811111101111119 in words is "eight hundred eleven trillion, one hundred eleven billion, one hundred one million, one hundred eleven thousand, one hundred nineteen".