20240404243 has 2 divisors, whose sum is σ = 20240404244. Its totient is φ = 20240404242.

The previous prime is 20240404199. The next prime is 20240404337. The reversal of 20240404243 is 34240404202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20240404243 - 2⁹ = 20240403731 is a prime.

It is not a weakly prime, because it can be changed into another prime (20240704243) 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, 10120202121 + 10120202122.

It is an arithmetic number, because the mean of its divisors is an integer number (10120202122).

Almost surely, 2^20240404243 is an apocalyptic number.

20240404243 is a deficient number, since it is larger than the sum of its proper divisors (1).

20240404243 is an equidigital number, since it uses as much as digits as its factorization.

20240404243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 25.

Adding to 20240404243 its reverse (34240404202), we get a palindrome (54480808445).

The spelling of 20240404243 in words is "twenty billion, two hundred forty million, four hundred four thousand, two hundred forty-three".