20116841 has 2 divisors, whose sum is σ = 20116842. Its totient is φ = 20116840.

The previous prime is 20116813. The next prime is 20116843. The reversal of 20116841 is 14861102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16000000 + 4116841 = 4000^2 + 2029^2 .

It is a cyclic number.

It is not a de Polignac number, because 20116841 - 2⁶ = 20116777 is a prime.

Together with 20116843, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20116843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10058420 + 10058421.

It is an arithmetic number, because the mean of its divisors is an integer number (10058421).

Almost surely, 2^20116841 is an apocalyptic number.

It is an amenable number.

20116841 is a deficient number, since it is larger than the sum of its proper divisors (1).

20116841 is an equidigital number, since it uses as much as digits as its factorization.

20116841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 20116841 is about 4485.1801524576. The cubic root of 20116841 is about 271.9693277481.

Adding to 20116841 its reverse (14861102), we get a palindrome (34977943).

The spelling of 20116841 in words is "twenty million, one hundred sixteen thousand, eight hundred forty-one".