21303282359 has 2 divisors, whose sum is σ = 21303282360. Its totient is φ = 21303282358.

The previous prime is 21303282331. The next prime is 21303282389. The reversal of 21303282359 is 95328230312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21303282359 - 2⁸ = 21303282103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21303282389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10651641179 + 10651641180.

It is an arithmetic number, because the mean of its divisors is an integer number (10651641180).

Almost surely, 2^21303282359 is an apocalyptic number.

21303282359 is a deficient number, since it is larger than the sum of its proper divisors (1).

21303282359 is an equidigital number, since it uses as much as digits as its factorization.

21303282359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 21303282359 in words is "twenty-one billion, three hundred three million, two hundred eighty-two thousand, three hundred fifty-nine".