242024040421 has 2 divisors, whose sum is σ = 242024040422. Its totient is φ = 242024040420.

The previous prime is 242024040367. The next prime is 242024040463. The reversal of 242024040421 is 124040420242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149007580225 + 93016460196 = 386015^2 + 304986^2 .

It is a cyclic number.

It is not a de Polignac number, because 242024040421 - 2⁹ = 242024039909 is a prime.

It is a super-2 number, since 2×242024040421² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (246024040421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121012020210 + 121012020211.

It is an arithmetic number, because the mean of its divisors is an integer number (121012020211).

Almost surely, 2^242024040421 is an apocalyptic number.

It is an amenable number.

242024040421 is a deficient number, since it is larger than the sum of its proper divisors (1).

242024040421 is an equidigital number, since it uses as much as digits as its factorization.

242024040421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 242024040421 its reverse (124040420242), we get a palindrome (366064460663).

The spelling of 242024040421 in words is "two hundred forty-two billion, twenty-four million, forty thousand, four hundred twenty-one".