20045424241 has 2 divisors, whose sum is σ = 20045424242. Its totient is φ = 20045424240.

The previous prime is 20045424239. The next prime is 20045424299. The reversal of 20045424241 is 14242454002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10201808016 + 9843616225 = 101004^2 + 99215^2 .

It is a cyclic number.

It is not a de Polignac number, because 20045424241 - 2¹ = 20045424239 is a prime.

Together with 20045424239, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20045424541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10022712120 + 10022712121.

It is an arithmetic number, because the mean of its divisors is an integer number (10022712121).

Almost surely, 2^20045424241 is an apocalyptic number.

It is an amenable number.

20045424241 is a deficient number, since it is larger than the sum of its proper divisors (1).

20045424241 is an equidigital number, since it uses as much as digits as its factorization.

20045424241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10240, while the sum is 28.

Adding to 20045424241 its reverse (14242454002), we get a palindrome (34287878243).

It can be divided in two parts, 2004 and 5424241, that added together give a palindrome (5426245).

The spelling of 20045424241 in words is "twenty billion, forty-five million, four hundred twenty-four thousand, two hundred forty-one".