111111000111111 has 432 divisors, whose sum is σ = 221754147753600. Its totient is φ = 49110644943360.

The previous prime is 111111000111109. The next prime is 111111000111151.

111111000111111 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 111111000111111 - 2¹ = 111111000111109 is a prime.

111111000111111 is a strobogrammatic number because it is the same when read upside-down.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111111000111151) by changing a digit.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 2113193820 + ... + 2113246398.

Almost surely, 2^{111111000111111} is an apocalyptic number.

111111000111111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111111000111111 is a deficient number, since it is larger than the sum of its proper divisors (110643147642489).

111111000111111 is a wasteful number, since it uses less digits than its factorization.

111111000111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52700 (or 52669 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 12.

It can be divided in two parts, 111111000 and 111111, that added together give a palindrome (111222111).

The spelling of 111111000111111 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred eleven thousand, one hundred eleven".