20410144217 has 2 divisors, whose sum is σ = 20410144218. Its totient is φ = 20410144216.

The previous prime is 20410144171. The next prime is 20410144243. The reversal of 20410144217 is 71244101402.

It is an a-pointer prime, because the next prime (20410144243) can be obtained adding 20410144217 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18055565641 + 2354578576 = 134371^2 + 48524^2 .

It is a cyclic number.

It is not a de Polignac number, because 20410144217 - 2¹⁶ = 20410078681 is a prime.

It is not a weakly prime, because it can be changed into another prime (20410144297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10205072108 + 10205072109.

It is an arithmetic number, because the mean of its divisors is an integer number (10205072109).

Almost surely, 2^20410144217 is an apocalyptic number.

It is an amenable number.

20410144217 is a deficient number, since it is larger than the sum of its proper divisors (1).

20410144217 is an equidigital number, since it uses as much as digits as its factorization.

20410144217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 26.

Adding to 20410144217 its reverse (71244101402), we get a palindrome (91654245619).

The spelling of 20410144217 in words is "twenty billion, four hundred ten million, one hundred forty-four thousand, two hundred seventeen".