11123555532111 has 48 divisors (see below), whose sum is σ = 18011708327808. Its totient is φ = 6555718929600.

The previous prime is 11123555532109. The next prime is 11123555532113.

11123555532111 is a `hidden beast` number, since 1 + 1 + 1 + 2 + 3 + 5 + 5 + 5 + 532 + 111 = 666.

11123555532111 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (11123555532109) and next prime (11123555532113).

It is not a de Polignac number, because 11123555532111 - 2¹ = 11123555532109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123555532113) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5795280 + ... + 7472106.

It is an arithmetic number, because the mean of its divisors is an integer number (375243923496).

Almost surely, 2^{11123555532111} is an apocalyptic number.

11123555532111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11123555532111 is a deficient number, since it is larger than the sum of its proper divisors (6888152795697).

11123555532111 is a wasteful number, since it uses less digits than its factorization.

11123555532111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678692 (or 1678689 counting only the distinct ones).

The product of its digits is 22500, while the sum is 36.

It can be divided in two parts, 1112355 and 5532111, that added together give a palindrome (6644466).

The spelling of 11123555532111 in words is "eleven trillion, one hundred twenty-three billion, five hundred fifty-five million, five hundred thirty-two thousand, one hundred eleven".