20242315447 has 2 divisors, whose sum is σ = 20242315448. Its totient is φ = 20242315446.

The previous prime is 20242315421. The next prime is 20242315469. The reversal of 20242315447 is 74451324202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20242315447 - 2¹⁹ = 20241791159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20242315547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10121157723 + 10121157724.

It is an arithmetic number, because the mean of its divisors is an integer number (10121157724).

Almost surely, 2^20242315447 is an apocalyptic number.

20242315447 is a deficient number, since it is larger than the sum of its proper divisors (1).

20242315447 is an equidigital number, since it uses as much as digits as its factorization.

20242315447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53760, while the sum is 34.

Adding to 20242315447 its reverse (74451324202), we get a palindrome (94693639649).

The spelling of 20242315447 in words is "twenty billion, two hundred forty-two million, three hundred fifteen thousand, four hundred forty-seven".