3111011101111 has 2 divisors, whose sum is σ = 3111011101112. Its totient is φ = 3111011101110.

The previous prime is 3111011101109. The next prime is 3111011101117. The reversal of 3111011101111 is 1111011101113.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1111011101113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3111011101111 - 2¹ = 3111011101109 is a prime.

Together with 3111011101109, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 3111011101091 and 3111011101100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3111011101117) 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, 1555505550555 + 1555505550556.

It is an arithmetic number, because the mean of its divisors is an integer number (1555505550556).

Almost surely, 2^{3111011101111} is an apocalyptic number.

3111011101111 is a deficient number, since it is larger than the sum of its proper divisors (1).

3111011101111 is an equidigital number, since it uses as much as digits as its factorization.

3111011101111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3, while the sum is 13.

Adding to 3111011101111 its reverse (1111011101113), we get a palindrome (4222022202224).

The spelling of 3111011101111 in words is "three trillion, one hundred eleven billion, eleven million, one hundred one thousand, one hundred eleven".