21041141140417 has 2 divisors, whose sum is σ = 21041141140418. Its totient is φ = 21041141140416.

The previous prime is 21041141140361. The next prime is 21041141140423. The reversal of 21041141140417 is 71404114114012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12511493791281 + 8529647349136 = 3537159^2 + 2920556^2 .

It is a cyclic number.

It is not a de Polignac number, because 21041141140417 - 2¹⁹ = 21041140616129 is a prime.

It is a super-2 number, since 2×21041141140417² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21041141150417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10520570570208 + 10520570570209.

It is an arithmetic number, because the mean of its divisors is an integer number (10520570570209).

Almost surely, 2^{21041141140417} is an apocalyptic number.

It is an amenable number.

21041141140417 is a deficient number, since it is larger than the sum of its proper divisors (1).

21041141140417 is an equidigital number, since it uses as much as digits as its factorization.

21041141140417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 31.

Adding to 21041141140417 its reverse (71404114114012), we get a palindrome (92445255254429).

The spelling of 21041141140417 in words is "twenty-one trillion, forty-one billion, one hundred forty-one million, one hundred forty thousand, four hundred seventeen".