20127305441 has 2 divisors, whose sum is σ = 20127305442. Its totient is φ = 20127305440.

The previous prime is 20127305437. The next prime is 20127305461. The reversal of 20127305441 is 14450372102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19955800225 + 171505216 = 141265^2 + 13096^2 .

It is a cyclic number.

It is not a de Polignac number, because 20127305441 - 2² = 20127305437 is a prime.

It is not a weakly prime, because it can be changed into another prime (20127305461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10063652720 + 10063652721.

It is an arithmetic number, because the mean of its divisors is an integer number (10063652721).

Almost surely, 2^20127305441 is an apocalyptic number.

It is an amenable number.

20127305441 is a deficient number, since it is larger than the sum of its proper divisors (1).

20127305441 is an equidigital number, since it uses as much as digits as its factorization.

20127305441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

Adding to 20127305441 its reverse (14450372102), we get a palindrome (34577677543).

The spelling of 20127305441 in words is "twenty billion, one hundred twenty-seven million, three hundred five thousand, four hundred forty-one".