120130121 has 2 divisors, whose sum is σ = 120130122. Its totient is φ = 120130120.

The previous prime is 120130117. The next prime is 120130147. The reversal of 120130121 is 121031021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78074896 + 42055225 = 8836^2 + 6485^2 .

It is an emirp because it is prime and its reverse (121031021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120130121 - 2² = 120130117 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (120130111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60065060 + 60065061.

It is an arithmetic number, because the mean of its divisors is an integer number (60065061).

Almost surely, 2^120130121 is an apocalyptic number.

It is an amenable number.

120130121 is a deficient number, since it is larger than the sum of its proper divisors (1).

120130121 is an equidigital number, since it uses as much as digits as its factorization.

120130121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 120130121 is about 10960.3887248583. The cubic root of 120130121 is about 493.4206315664.

Adding to 120130121 its reverse (121031021), we get a palindrome (241161142).

The spelling of 120130121 in words is "one hundred twenty million, one hundred thirty thousand, one hundred twenty-one".