21321110203067 has 2 divisors, whose sum is σ = 21321110203068. Its totient is φ = 21321110203066.

The previous prime is 21321110203049. The next prime is 21321110203079. The reversal of 21321110203067 is 76030201112312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21321110203067 - 2²⁸ = 21320841767611 is a prime.

It is a super-3 number, since 3×21321110203067³ (a number of 41 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (21321110203667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10660555101533 + 10660555101534.

It is an arithmetic number, because the mean of its divisors is an integer number (10660555101534).

Almost surely, 2^{21321110203067} is an apocalyptic number.

21321110203067 is a deficient number, since it is larger than the sum of its proper divisors (1).

21321110203067 is an equidigital number, since it uses as much as digits as its factorization.

21321110203067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

Adding to 21321110203067 its reverse (76030201112312), we get a palindrome (97351311315379).

The spelling of 21321110203067 in words is "twenty-one trillion, three hundred twenty-one billion, one hundred ten million, two hundred three thousand, sixty-seven".