120121163 has 2 divisors, whose sum is σ = 120121164. Its totient is φ = 120121162.

The previous prime is 120121123. The next prime is 120121181. The reversal of 120121163 is 361121021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120121163 - 2¹⁰ = 120120139 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (120121123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60060581 + 60060582.

It is an arithmetic number, because the mean of its divisors is an integer number (60060582).

Almost surely, 2^120121163 is an apocalyptic number.

120121163 is a deficient number, since it is larger than the sum of its proper divisors (1).

120121163 is an equidigital number, since it uses as much as digits as its factorization.

120121163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 120121163 is about 10959.9800638505. The cubic root of 120121163 is about 493.4083666106.

Adding to 120121163 its reverse (361121021), we get a palindrome (481242184).

The spelling of 120121163 in words is "one hundred twenty million, one hundred twenty-one thousand, one hundred sixty-three".