111111000121111 has 8 divisors (see below), whose sum is σ = 111755372126400. Its totient is φ = 110466652390752.

The previous prime is 111111000121087. The next prime is 111111000121117. The reversal of 111111000121111 is 111121000111111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111111000121111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111111000121091 and 111111000121100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111111000121117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3152706 + ... + 15236848.

It is an arithmetic number, because the mean of its divisors is an integer number (13969421515800).

Almost surely, 2^{111111000121111} is an apocalyptic number.

111111000121111 is a deficient number, since it is larger than the sum of its proper divisors (644372005289).

111111000121111 is a wasteful number, since it uses less digits than its factorization.

111111000121111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12137465.

The product of its (nonzero) digits is 2, while the sum is 13.

Adding to 111111000121111 its reverse (111121000111111), we get a palindrome (222232000232222).

It can be divided in two parts, 111111000 and 121111, that added together give a palindrome (111232111).

The spelling of 111111000121111 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred twenty-one thousand, one hundred eleven".