21302027139007 has 2 divisors, whose sum is σ = 21302027139008. Its totient is φ = 21302027139006.

The previous prime is 21302027138981. The next prime is 21302027139047. The reversal of 21302027139007 is 70093172020312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21302027139007 - 2⁷ = 21302027138879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21302027139047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10651013569503 + 10651013569504.

It is an arithmetic number, because the mean of its divisors is an integer number (10651013569504).

Almost surely, 2^{21302027139007} is an apocalyptic number.

21302027139007 is a deficient number, since it is larger than the sum of its proper divisors (1).

21302027139007 is an equidigital number, since it uses as much as digits as its factorization.

21302027139007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 37.

Adding to 21302027139007 its reverse (70093172020312), we get a palindrome (91395199159319).

The spelling of 21302027139007 in words is "twenty-one trillion, three hundred two billion, twenty-seven million, one hundred thirty-nine thousand, seven".