21300212083 has 2 divisors, whose sum is σ = 21300212084. Its totient is φ = 21300212082.

The previous prime is 21300212039. The next prime is 21300212123. The reversal of 21300212083 is 38021200312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21300212083 - 2³³ = 12710277491 is a prime.

It is not a weakly prime, because it can be changed into another prime (21300212683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10650106041 + 10650106042.

It is an arithmetic number, because the mean of its divisors is an integer number (10650106042).

Almost surely, 2^21300212083 is an apocalyptic number.

21300212083 is a deficient number, since it is larger than the sum of its proper divisors (1).

21300212083 is an equidigital number, since it uses as much as digits as its factorization.

21300212083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21300212083 its reverse (38021200312), we get a palindrome (59321412395).

The spelling of 21300212083 in words is "twenty-one billion, three hundred million, two hundred twelve thousand, eighty-three".