241244021 has 2 divisors, whose sum is σ = 241244022. Its totient is φ = 241244020.

The previous prime is 241243999. The next prime is 241244027. The reversal of 241244021 is 120442142.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228916900 + 12327121 = 15130^2 + 3511^2 .

It is a cyclic number.

It is not a de Polignac number, because 241244021 - 2¹⁸ = 240981877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 241243984 and 241244002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (241244027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120622010 + 120622011.

It is an arithmetic number, because the mean of its divisors is an integer number (120622011).

Almost surely, 2^241244021 is an apocalyptic number.

It is an amenable number.

241244021 is a deficient number, since it is larger than the sum of its proper divisors (1).

241244021 is an equidigital number, since it uses as much as digits as its factorization.

241244021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 241244021 is about 15532.0320949965. The cubic root of 241244021 is about 622.5183908805.

Adding to 241244021 its reverse (120442142), we get a palindrome (361686163).

The spelling of 241244021 in words is "two hundred forty-one million, two hundred forty-four thousand, twenty-one".