42110104217 has 2 divisors, whose sum is σ = 42110104218. Its totient is φ = 42110104216.

The previous prime is 42110104181. The next prime is 42110104237. The reversal of 42110104217 is 71240101124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39640411801 + 2469692416 = 199099^2 + 49696^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42110104217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42110104192 and 42110104201.

It is not a weakly prime, because it can be changed into another prime (42110104237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21055052108 + 21055052109.

It is an arithmetic number, because the mean of its divisors is an integer number (21055052109).

Almost surely, 2^42110104217 is an apocalyptic number.

It is an amenable number.

42110104217 is a deficient number, since it is larger than the sum of its proper divisors (1).

42110104217 is an equidigital number, since it uses as much as digits as its factorization.

42110104217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 23.

The spelling of 42110104217 in words is "forty-two billion, one hundred ten million, one hundred four thousand, two hundred seventeen".