20124043441 has 2 divisors, whose sum is σ = 20124043442. Its totient is φ = 20124043440.

The previous prime is 20124043427. The next prime is 20124043481. The reversal of 20124043441 is 14434042102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10594379041 + 9529664400 = 102929^2 + 97620^2 .

It is a cyclic number.

It is not a de Polignac number, because 20124043441 - 2⁵ = 20124043409 is a prime.

It is not a weakly prime, because it can be changed into another prime (20124043481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10062021720 + 10062021721.

It is an arithmetic number, because the mean of its divisors is an integer number (10062021721).

Almost surely, 2^20124043441 is an apocalyptic number.

It is an amenable number.

20124043441 is a deficient number, since it is larger than the sum of its proper divisors (1).

20124043441 is an equidigital number, since it uses as much as digits as its factorization.

20124043441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 20124043441 its reverse (14434042102), we get a palindrome (34558085543).

The spelling of 20124043441 in words is "twenty billion, one hundred twenty-four million, forty-three thousand, four hundred forty-one".