111103444217 has 2 divisors, whose sum is σ = 111103444218. Its totient is φ = 111103444216.

The previous prime is 111103444183. The next prime is 111103444219. The reversal of 111103444217 is 712444301111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94280316601 + 16823127616 = 307051^2 + 129704^2 .

It is a cyclic number.

It is not a de Polignac number, because 111103444217 - 2¹² = 111103440121 is a prime.

Together with 111103444219, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111103444217.

It is not a weakly prime, because it can be changed into another prime (111103444219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55551722108 + 55551722109.

It is an arithmetic number, because the mean of its divisors is an integer number (55551722109).

Almost surely, 2^111103444217 is an apocalyptic number.

It is an amenable number.

111103444217 is a deficient number, since it is larger than the sum of its proper divisors (1).

111103444217 is an equidigital number, since it uses as much as digits as its factorization.

111103444217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 29.

Adding to 111103444217 its reverse (712444301111), we get a palindrome (823547745328).

The spelling of 111103444217 in words is "one hundred eleven billion, one hundred three million, four hundred forty-four thousand, two hundred seventeen".