20533703388343 has 2 divisors, whose sum is σ = 20533703388344. Its totient is φ = 20533703388342.

The previous prime is 20533703388323. The next prime is 20533703388361. The reversal of 20533703388343 is 34388330733502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20533703388343 - 2¹⁷ = 20533703257271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20533703388323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10266851694171 + 10266851694172.

It is an arithmetic number, because the mean of its divisors is an integer number (10266851694172).

Almost surely, 2^{20533703388343} is an apocalyptic number.

20533703388343 is a deficient number, since it is larger than the sum of its proper divisors (1).

20533703388343 is an equidigital number, since it uses as much as digits as its factorization.

20533703388343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13063680, while the sum is 52.

The spelling of 20533703388343 in words is "twenty trillion, five hundred thirty-three billion, seven hundred three million, three hundred eighty-eight thousand, three hundred forty-three".