1055110511111 has 16 divisors (see below), whose sum is σ = 1120382147808. Its totient is φ = 990196147200.

The previous prime is 1055110511093. The next prime is 1055110511123. The reversal of 1055110511111 is 1111150115501.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1055110511111 is a prime.

It is a super-2 number, since 2×1055110511111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055110511711) 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 in 15 ways as a sum of consecutive naturals, for example, 42859196 + ... + 42883806.

It is an arithmetic number, because the mean of its divisors is an integer number (70023884238).

Almost surely, 2^{1055110511111} is an apocalyptic number.

1055110511111 is a deficient number, since it is larger than the sum of its proper divisors (65271636697).

1055110511111 is a wasteful number, since it uses less digits than its factorization.

1055110511111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31762.

The product of its (nonzero) digits is 125, while the sum is 23.

Adding to 1055110511111 its reverse (1111150115501), we get a palindrome (2166260626612).

The spelling of 1055110511111 in words is "one trillion, fifty-five billion, one hundred ten million, five hundred eleven thousand, one hundred eleven".