121273241 has 2 divisors, whose sum is σ = 121273242. Its totient is φ = 121273240.

The previous prime is 121273211. The next prime is 121273247. The reversal of 121273241 is 142372121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121110025 + 163216 = 11005^2 + 404^2 .

It is a cyclic number.

It is not a de Polignac number, because 121273241 - 2⁶ = 121273177 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (121273247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60636620 + 60636621.

It is an arithmetic number, because the mean of its divisors is an integer number (60636621).

Almost surely, 2^121273241 is an apocalyptic number.

It is an amenable number.

121273241 is a deficient number, since it is larger than the sum of its proper divisors (1).

121273241 is an equidigital number, since it uses as much as digits as its factorization.

121273241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 23.

The square root of 121273241 is about 11012.4130416544. The cubic root of 121273241 is about 494.9807712831.

The spelling of 121273241 in words is "one hundred twenty-one million, two hundred seventy-three thousand, two hundred forty-one".