103420125217 has 2 divisors, whose sum is σ = 103420125218. Its totient is φ = 103420125216.

The previous prime is 103420125197. The next prime is 103420125247. The reversal of 103420125217 is 712521024301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95384616336 + 8035508881 = 308844^2 + 89641^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103420125217 is a prime.

It is not a weakly prime, because it can be changed into another prime (103420125247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51710062608 + 51710062609.

It is an arithmetic number, because the mean of its divisors is an integer number (51710062609).

Almost surely, 2^103420125217 is an apocalyptic number.

It is an amenable number.

103420125217 is a deficient number, since it is larger than the sum of its proper divisors (1).

103420125217 is an equidigital number, since it uses as much as digits as its factorization.

103420125217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

Adding to 103420125217 its reverse (712521024301), we get a palindrome (815941149518).

The spelling of 103420125217 in words is "one hundred three billion, four hundred twenty million, one hundred twenty-five thousand, two hundred seventeen".