910000121 has 2 divisors, whose sum is σ = 910000122. Its totient is φ = 910000120.

The previous prime is 910000093. The next prime is 910000151. The reversal of 910000121 is 121000019.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 909866896 + 133225 = 30164^2 + 365^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-910000121 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 910000096 and 910000105.

It is not a weakly prime, because it can be changed into another prime (910000151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 455000060 + 455000061.

It is an arithmetic number, because the mean of its divisors is an integer number (455000061).

Almost surely, 2^910000121 is an apocalyptic number.

It is an amenable number.

910000121 is a deficient number, since it is larger than the sum of its proper divisors (1).

910000121 is an equidigital number, since it uses as much as digits as its factorization.

910000121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 910000121 is about 30166.2082635521. The cubic root of 910000121 is about 969.0521512940.

The spelling of 910000121 in words is "nine hundred ten million, one hundred twenty-one", and thus it is an aban number.