123010042217 has 2 divisors, whose sum is σ = 123010042218. Its totient is φ = 123010042216.

The previous prime is 123010042159. The next prime is 123010042273. The reversal of 123010042217 is 712240010321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90931799401 + 32078242816 = 301549^2 + 179104^2 .

It is a cyclic number.

It is not a de Polignac number, because 123010042217 - 2⁶ = 123010042153 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123010042192 and 123010042201.

It is not a weakly prime, because it can be changed into another prime (123010042717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61505021108 + 61505021109.

It is an arithmetic number, because the mean of its divisors is an integer number (61505021109).

Almost surely, 2^123010042217 is an apocalyptic number.

It is an amenable number.

123010042217 is a deficient number, since it is larger than the sum of its proper divisors (1).

123010042217 is an equidigital number, since it uses as much as digits as its factorization.

123010042217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 123010042217 its reverse (712240010321), we get a palindrome (835250052538).

The spelling of 123010042217 in words is "one hundred twenty-three billion, ten million, forty-two thousand, two hundred seventeen".