21303434083 has 2 divisors, whose sum is σ = 21303434084. Its totient is φ = 21303434082.

The previous prime is 21303434059. The next prime is 21303434107. The reversal of 21303434083 is 38043430312.

It is a balanced prime because it is at equal distance from previous prime (21303434059) and next prime (21303434107).

It is a cyclic number.

It is not a de Polignac number, because 21303434083 - 2⁵ = 21303434051 is a prime.

It is not a weakly prime, because it can be changed into another prime (21303434683) 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, 10651717041 + 10651717042.

It is an arithmetic number, because the mean of its divisors is an integer number (10651717042).

Almost surely, 2^21303434083 is an apocalyptic number.

21303434083 is a deficient number, since it is larger than the sum of its proper divisors (1).

21303434083 is an equidigital number, since it uses as much as digits as its factorization.

21303434083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 21303434083 its reverse (38043430312), we get a palindrome (59346864395).

The spelling of 21303434083 in words is "twenty-one billion, three hundred three million, four hundred thirty-four thousand, eighty-three".