121443241 has 2 divisors, whose sum is σ = 121443242. Its totient is φ = 121443240.

The previous prime is 121443233. The next prime is 121443281. The reversal of 121443241 is 142344121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104468841 + 16974400 = 10221^2 + 4120^2 .

It is a cyclic number.

It is not a de Polignac number, because 121443241 - 2³ = 121443233 is a prime.

It is not a weakly prime, because it can be changed into another prime (121443281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60721620 + 60721621.

It is an arithmetic number, because the mean of its divisors is an integer number (60721621).

Almost surely, 2^121443241 is an apocalyptic number.

It is an amenable number.

121443241 is a deficient number, since it is larger than the sum of its proper divisors (1).

121443241 is an equidigital number, since it uses as much as digits as its factorization.

121443241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768, while the sum is 22.

The square root of 121443241 is about 11020.1289012425. The cubic root of 121443241 is about 495.2119501820.

Adding to 121443241 its reverse (142344121), we get a palindrome (263787362).

The spelling of 121443241 in words is "one hundred twenty-one million, four hundred forty-three thousand, two hundred forty-one".