20813183284111 has 2 divisors, whose sum is σ = 20813183284112. Its totient is φ = 20813183284110.

The previous prime is 20813183284051. The next prime is 20813183284163. The reversal of 20813183284111 is 11148238131802.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20813183284111 - 2¹⁷ = 20813183153039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20813183284511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10406591642055 + 10406591642056.

It is an arithmetic number, because the mean of its divisors is an integer number (10406591642056).

Almost surely, 2^{20813183284111} is an apocalyptic number.

20813183284111 is a deficient number, since it is larger than the sum of its proper divisors (1).

20813183284111 is an equidigital number, since it uses as much as digits as its factorization.

20813183284111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 73728, while the sum is 43.

The spelling of 20813183284111 in words is "twenty trillion, eight hundred thirteen billion, one hundred eighty-three million, two hundred eighty-four thousand, one hundred eleven".