21703094143 has 2 divisors, whose sum is σ = 21703094144. Its totient is φ = 21703094142.

The previous prime is 21703094137. The next prime is 21703094159. The reversal of 21703094143 is 34149030712.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21703094143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21703094099 and 21703094108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21703094113) 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, 10851547071 + 10851547072.

It is an arithmetic number, because the mean of its divisors is an integer number (10851547072).

Almost surely, 2^21703094143 is an apocalyptic number.

21703094143 is a deficient number, since it is larger than the sum of its proper divisors (1).

21703094143 is an equidigital number, since it uses as much as digits as its factorization.

21703094143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 21703094143 in words is "twenty-one billion, seven hundred three million, ninety-four thousand, one hundred forty-three".