20424140221411 has 2 divisors, whose sum is σ = 20424140221412. Its totient is φ = 20424140221410.

The previous prime is 20424140221403. The next prime is 20424140221417. The reversal of 20424140221411 is 11412204142402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20424140221411 - 2³ = 20424140221403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20424140221411.

It is not a weakly prime, because it can be changed into another prime (20424140221417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10212070110705 + 10212070110706.

It is an arithmetic number, because the mean of its divisors is an integer number (10212070110706).

Almost surely, 2^{20424140221411} is an apocalyptic number.

20424140221411 is a deficient number, since it is larger than the sum of its proper divisors (1).

20424140221411 is an equidigital number, since it uses as much as digits as its factorization.

20424140221411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4096, while the sum is 28.

Adding to 20424140221411 its reverse (11412204142402), we get a palindrome (31836344363813).

The spelling of 20424140221411 in words is "twenty trillion, four hundred twenty-four billion, one hundred forty million, two hundred twenty-one thousand, four hundred eleven".