111000120111111 has 128 divisors (see below), whose sum is σ = 193064966553600. Its totient is φ = 55037713167360.

The previous prime is 111000120110981. The next prime is 111000120111119. The reversal of 111000120111111 is 111111021000111.

It is not a de Polignac number, because 111000120111111 - 2²¹ = 111000118013959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111000120111119) 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 127 ways as a sum of consecutive naturals, for example, 3662509020 + ... + 3662539326.

It is an arithmetic number, because the mean of its divisors is an integer number (1508320051200).

Almost surely, 2^{111000120111111} is an apocalyptic number.

111000120111111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111000120111111 is a deficient number, since it is larger than the sum of its proper divisors (82064846442489).

111000120111111 is a wasteful number, since it uses less digits than its factorization.

111000120111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36589.

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 111000120111111 its reverse (111111021000111), we get a palindrome (222111141111222).

The spelling of 111000120111111 in words is "one hundred eleven trillion, one hundred twenty million, one hundred eleven thousand, one hundred eleven".