111123032010217 has 2 divisors, whose sum is σ = 111123032010218. Its totient is φ = 111123032010216.

The previous prime is 111123032010173. The next prime is 111123032010241. The reversal of 111123032010217 is 712010230321111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109408650299881 + 1714381710336 = 10459859^2 + 1309344^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111123032010217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111123032010191 and 111123032010200.

It is not a weakly prime, because it can be changed into another prime (111123032010817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55561516005108 + 55561516005109.

It is an arithmetic number, because the mean of its divisors is an integer number (55561516005109).

Almost surely, 2^{111123032010217} is an apocalyptic number.

It is an amenable number.

111123032010217 is a deficient number, since it is larger than the sum of its proper divisors (1).

111123032010217 is an equidigital number, since it uses as much as digits as its factorization.

111123032010217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 25.

Adding to 111123032010217 its reverse (712010230321111), we get a palindrome (823133262331328).

The spelling of 111123032010217 in words is "one hundred eleven trillion, one hundred twenty-three billion, thirty-two million, ten thousand, two hundred seventeen".