20424121043 has 2 divisors, whose sum is σ = 20424121044. Its totient is φ = 20424121042.

The previous prime is 20424121033. The next prime is 20424121087. The reversal of 20424121043 is 34012142402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20424121043 - 2¹⁶ = 20424055507 is a prime.

It is not a weakly prime, because it can be changed into another prime (20424121033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10212060521 + 10212060522.

It is an arithmetic number, because the mean of its divisors is an integer number (10212060522).

Almost surely, 2^20424121043 is an apocalyptic number.

20424121043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20424121043 is an equidigital number, since it uses as much as digits as its factorization.

20424121043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20424121043 its reverse (34012142402), we get a palindrome (54436263445).

The spelling of 20424121043 in words is "twenty billion, four hundred twenty-four million, one hundred twenty-one thousand, forty-three".