21343301327 has 2 divisors, whose sum is σ = 21343301328. Its totient is φ = 21343301326.

The previous prime is 21343301311. The next prime is 21343301359. The reversal of 21343301327 is 72310334312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21343301327 - 2⁴ = 21343301311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21343301327.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21343301527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10671650663 + 10671650664.

It is an arithmetic number, because the mean of its divisors is an integer number (10671650664).

Almost surely, 2^21343301327 is an apocalyptic number.

21343301327 is a deficient number, since it is larger than the sum of its proper divisors (1).

21343301327 is an equidigital number, since it uses as much as digits as its factorization.

21343301327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 29.

Adding to 21343301327 its reverse (72310334312), we get a palindrome (93653635639).

The spelling of 21343301327 in words is "twenty-one billion, three hundred forty-three million, three hundred one thousand, three hundred twenty-seven".