21332300071 has 2 divisors, whose sum is σ = 21332300072. Its totient is φ = 21332300070.

The previous prime is 21332300053. The next prime is 21332300149. The reversal of 21332300071 is 17000323312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21332300071 - 2¹⁷ = 21332168999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21332300771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10666150035 + 10666150036.

It is an arithmetic number, because the mean of its divisors is an integer number (10666150036).

Almost surely, 2^21332300071 is an apocalyptic number.

21332300071 is a deficient number, since it is larger than the sum of its proper divisors (1).

21332300071 is an equidigital number, since it uses as much as digits as its factorization.

21332300071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 22.

Adding to 21332300071 its reverse (17000323312), we get a palindrome (38332623383).

The spelling of 21332300071 in words is "twenty-one billion, three hundred thirty-two million, three hundred thousand, seventy-one".