100120417 has 2 divisors, whose sum is σ = 100120418. Its totient is φ = 100120416.

The previous prime is 100120411. The next prime is 100120457. The reversal of 100120417 is 714021001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100080016 + 40401 = 10004^2 + 201^2 .

It is a cyclic number.

It is not a de Polignac number, because 100120417 - 2⁷ = 100120289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100120417.

It is not a weakly prime, because it can be changed into another prime (100120411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060208 + 50060209.

It is an arithmetic number, because the mean of its divisors is an integer number (50060209).

Almost surely, 2^100120417 is an apocalyptic number.

It is an amenable number.

100120417 is a deficient number, since it is larger than the sum of its proper divisors (1).

100120417 is an equidigital number, since it uses as much as digits as its factorization.

100120417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 100120417 is about 10006.0190385587. The cubic root of 100120417 is about 464.3451173630.

Adding to 100120417 its reverse (714021001), we get a palindrome (814141418).

The spelling of 100120417 in words is "one hundred million, one hundred twenty thousand, four hundred seventeen".