120421241 has 2 divisors, whose sum is σ = 120421242. Its totient is φ = 120421240.

The previous prime is 120421211. The next prime is 120421243. The reversal of 120421241 is 142124021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80478841 + 39942400 = 8971^2 + 6320^2 .

It is a cyclic number.

It is not a de Polignac number, because 120421241 - 2¹⁰ = 120420217 is a prime.

Together with 120421243, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (120421243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60210620 + 60210621.

It is an arithmetic number, because the mean of its divisors is an integer number (60210621).

Almost surely, 2^120421241 is an apocalyptic number.

It is an amenable number.

120421241 is a deficient number, since it is larger than the sum of its proper divisors (1).

120421241 is an equidigital number, since it uses as much as digits as its factorization.

120421241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 120421241 is about 10973.6612395317. The cubic root of 120421241 is about 493.8188906493.

Adding to 120421241 its reverse (142124021), we get a palindrome (262545262).

The spelling of 120421241 in words is "one hundred twenty million, four hundred twenty-one thousand, two hundred forty-one".