20353304143 has 2 divisors, whose sum is σ = 20353304144. Its totient is φ = 20353304142.

The previous prime is 20353304129. The next prime is 20353304183. The reversal of 20353304143 is 34140335302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20353304143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20353304183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10176652071 + 10176652072.

It is an arithmetic number, because the mean of its divisors is an integer number (10176652072).

Almost surely, 2^20353304143 is an apocalyptic number.

20353304143 is a deficient number, since it is larger than the sum of its proper divisors (1).

20353304143 is an equidigital number, since it uses as much as digits as its factorization.

20353304143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 20353304143 its reverse (34140335302), we get a palindrome (54493639445).

The spelling of 20353304143 in words is "twenty billion, three hundred fifty-three million, three hundred four thousand, one hundred forty-three".