5111110611011 has 2 divisors, whose sum is σ = 5111110611012. Its totient is φ = 5111110611010.

The previous prime is 5111110610981. The next prime is 5111110611031. The reversal of 5111110611011 is 1101160111115.

It is a happy number.

It is an a-pointer prime, because the next prime (5111110611031) can be obtained adding 5111110611011 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5111110611011 - 2¹⁰ = 5111110609987 is a prime.

It is a super-2 number, since 2×5111110611011² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5111110611031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555555305505 + 2555555305506.

It is an arithmetic number, because the mean of its divisors is an integer number (2555555305506).

Almost surely, 2^{5111110611011} is an apocalyptic number.

5111110611011 is a deficient number, since it is larger than the sum of its proper divisors (1).

5111110611011 is an equidigital number, since it uses as much as digits as its factorization.

5111110611011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30, while the sum is 20.

Adding to 5111110611011 its reverse (1101160111115), we get a palindrome (6212270722126).

The spelling of 5111110611011 in words is "five trillion, one hundred eleven billion, one hundred ten million, six hundred eleven thousand, eleven".