20404043041 has 2 divisors, whose sum is σ = 20404043042. Its totient is φ = 20404043040.

The previous prime is 20404043029. The next prime is 20404043071. The reversal of 20404043041 is 14034040402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16061760225 + 4342282816 = 126735^2 + 65896^2 .

It is a cyclic number.

It is not a de Polignac number, because 20404043041 - 2⁷ = 20404042913 is a prime.

It is not a weakly prime, because it can be changed into another prime (20404043021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10202021520 + 10202021521.

It is an arithmetic number, because the mean of its divisors is an integer number (10202021521).

Almost surely, 2^20404043041 is an apocalyptic number.

It is an amenable number.

20404043041 is a deficient number, since it is larger than the sum of its proper divisors (1).

20404043041 is an equidigital number, since it uses as much as digits as its factorization.

20404043041 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 22.

Adding to 20404043041 its reverse (14034040402), we get a palindrome (34438083443).

The spelling of 20404043041 in words is "twenty billion, four hundred four million, forty-three thousand, forty-one".