55120040116111 has 2 divisors, whose sum is σ = 55120040116112. Its totient is φ = 55120040116110.

The previous prime is 55120040116109. The next prime is 55120040116213. The reversal of 55120040116111 is 11161104002155.

55120040116111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55120040116111 - 2¹ = 55120040116109 is a prime.

Together with 55120040116109, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 55120040116111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55120040110111) 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, 27560020058055 + 27560020058056.

It is an arithmetic number, because the mean of its divisors is an integer number (27560020058056).

Almost surely, 2^{55120040116111} is an apocalyptic number.

55120040116111 is a deficient number, since it is larger than the sum of its proper divisors (1).

55120040116111 is an equidigital number, since it uses as much as digits as its factorization.

55120040116111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 28.

Adding to 55120040116111 its reverse (11161104002155), we get a palindrome (66281144118266).

The spelling of 55120040116111 in words is "fifty-five trillion, one hundred twenty billion, forty million, one hundred sixteen thousand, one hundred eleven".