20540364234983 has 2 divisors, whose sum is σ = 20540364234984. Its totient is φ = 20540364234982.

The previous prime is 20540364234959. The next prime is 20540364234989. The reversal of 20540364234983 is 38943246304502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20540364234983 - 2¹⁰ = 20540364233959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20540364234989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10270182117491 + 10270182117492.

It is an arithmetic number, because the mean of its divisors is an integer number (10270182117492).

Almost surely, 2^{20540364234983} is an apocalyptic number.

20540364234983 is a deficient number, since it is larger than the sum of its proper divisors (1).

20540364234983 is an equidigital number, since it uses as much as digits as its factorization.

20540364234983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14929920, while the sum is 53.

The spelling of 20540364234983 in words is "twenty trillion, five hundred forty billion, three hundred sixty-four million, two hundred thirty-four thousand, nine hundred eighty-three".