20117411 has 2 divisors, whose sum is σ = 20117412. Its totient is φ = 20117410.

The previous prime is 20117401. The next prime is 20117431. The reversal of 20117411 is 11471102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20117411 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20117411.

It is not a weakly prime, because it can be changed into another prime (20117401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10058705 + 10058706.

It is an arithmetic number, because the mean of its divisors is an integer number (10058706).

Almost surely, 2^20117411 is an apocalyptic number.

20117411 is a deficient number, since it is larger than the sum of its proper divisors (1).

20117411 is an equidigital number, since it uses as much as digits as its factorization.

20117411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 20117411 is about 4485.2436946057. The cubic root of 20117411 is about 271.9718964260.

Adding to 20117411 its reverse (11471102), we get a palindrome (31588513).

The spelling of 20117411 in words is "twenty million, one hundred seventeen thousand, four hundred eleven".