20541042241 has 2 divisors, whose sum is σ = 20541042242. Its totient is φ = 20541042240.

The previous prime is 20541042227. The next prime is 20541042299. The reversal of 20541042241 is 14224014502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20289153600 + 251888641 = 142440^2 + 15871^2 .

It is a cyclic number.

It is not a de Polignac number, because 20541042241 - 2¹⁷ = 20540911169 is a prime.

It is not a weakly prime, because it can be changed into another prime (20541042541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10270521120 + 10270521121.

It is an arithmetic number, because the mean of its divisors is an integer number (10270521121).

Almost surely, 2^20541042241 is an apocalyptic number.

It is an amenable number.

20541042241 is a deficient number, since it is larger than the sum of its proper divisors (1).

20541042241 is an equidigital number, since it uses as much as digits as its factorization.

20541042241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 20541042241 its reverse (14224014502), we get a palindrome (34765056743).

The spelling of 20541042241 in words is "twenty billion, five hundred forty-one million, forty-two thousand, two hundred forty-one".