111111001111110 has 512 divisors, whose sum is σ = 389348964200448. Its totient is φ = 19516232171520.

The previous prime is 111111001111051. The next prime is 111111001111133. The reversal of 111111001111110 is 11111100111111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 15947694 + ... + 21830046.

It is an arithmetic number, because the mean of its divisors is an integer number (760447195704).

Almost surely, 2^{111111001111110} is an apocalyptic number.

111111001111110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 111111001111110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194674482100224).

111111001111110 is an abundant number, since it is smaller than the sum of its proper divisors (278237963089338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111111001111110 is a wasteful number, since it uses less digits than its factorization.

111111001111110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882448.

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

Adding to 111111001111110 its reverse (11111100111111), we get a palindrome (122222101222221).

Subtracting from 111111001111110 its reverse (11111100111111), we obtain a palindrome (99999900999999).

It can be divided in two parts, 111111001 and 111110, that added together give a palindrome (111222111).

The spelling of 111111001111110 in words is "one hundred eleven trillion, one hundred eleven billion, one million, one hundred eleven thousand, one hundred ten".