110128217 has 2 divisors, whose sum is σ = 110128218. Its totient is φ = 110128216.

The previous prime is 110128211. The next prime is 110128229. The reversal of 110128217 is 712821011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72318016 + 37810201 = 8504^2 + 6149^2 .

It is a cyclic number.

It is not a de Polignac number, because 110128217 - 2⁴ = 110128201 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 110128192 and 110128201.

It is not a weakly prime, because it can be changed into another prime (110128211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55064108 + 55064109.

It is an arithmetic number, because the mean of its divisors is an integer number (55064109).

Almost surely, 2^110128217 is an apocalyptic number.

It is an amenable number.

110128217 is a deficient number, since it is larger than the sum of its proper divisors (1).

110128217 is an equidigital number, since it uses as much as digits as its factorization.

110128217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 23.

The square root of 110128217 is about 10494.1992071811. The cubic root of 110128217 is about 479.3280775064.

Adding to 110128217 its reverse (712821011), we get a palindrome (822949228).

The spelling of 110128217 in words is "one hundred ten million, one hundred twenty-eight thousand, two hundred seventeen".