111214105018 has 4 divisors (see below), whose sum is σ = 166821157530. Its totient is φ = 55607052508.

The previous prime is 111214105001. The next prime is 111214105019. The reversal of 111214105018 is 810501412111.

111214105018 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 810501412111 = 115499 ⋅7017389.

It can be written as a sum of positive squares in only one way, i.e., 90214327449 + 20999777569 = 300357^2 + 144913^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111214104983 and 111214105001.

It is not an unprimeable number, because it can be changed into a prime (111214105019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27803526253 + ... + 27803526256.

Almost surely, 2^111214105018 is an apocalyptic number.

111214105018 is a deficient number, since it is larger than the sum of its proper divisors (55607052512).

111214105018 is an equidigital number, since it uses as much as digits as its factorization.

111214105018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55607052511.

The product of its (nonzero) digits is 320, while the sum is 25.

Adding to 111214105018 its reverse (810501412111), we get a palindrome (921715517129).

The spelling of 111214105018 in words is "one hundred eleven billion, two hundred fourteen million, one hundred five thousand, eighteen".