21302100330127 has 2 divisors, whose sum is σ = 21302100330128. Its totient is φ = 21302100330126.

The previous prime is 21302100330103. The next prime is 21302100330131. The reversal of 21302100330127 is 72103300120312.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21302100330127 is a prime.

It is a super-2 number, since 2×21302100330127² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21302100330227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10651050165063 + 10651050165064.

It is an arithmetic number, because the mean of its divisors is an integer number (10651050165064).

Almost surely, 2^{21302100330127} is an apocalyptic number.

21302100330127 is a deficient number, since it is larger than the sum of its proper divisors (1).

21302100330127 is an equidigital number, since it uses as much as digits as its factorization.

21302100330127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

Adding to 21302100330127 its reverse (72103300120312), we get a palindrome (93405400450439).

The spelling of 21302100330127 in words is "twenty-one trillion, three hundred two billion, one hundred million, three hundred thirty thousand, one hundred twenty-seven".