21321230031301 has 2 divisors, whose sum is σ = 21321230031302. Its totient is φ = 21321230031300.

The previous prime is 21321230031113. The next prime is 21321230031337. The reversal of 21321230031301 is 10313003212312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21282776782276 + 38453249025 = 4613326^2 + 196095^2 .

It is a cyclic number.

It is not a de Polignac number, because 21321230031301 - 2¹⁹ = 21321229507013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21321230031001) 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, 10660615015650 + 10660615015651.

It is an arithmetic number, because the mean of its divisors is an integer number (10660615015651).

Almost surely, 2^{21321230031301} is an apocalyptic number.

It is an amenable number.

21321230031301 is a deficient number, since it is larger than the sum of its proper divisors (1).

21321230031301 is an equidigital number, since it uses as much as digits as its factorization.

21321230031301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 21321230031301 its reverse (10313003212312), we get a palindrome (31634233243613).

The spelling of 21321230031301 in words is "twenty-one trillion, three hundred twenty-one billion, two hundred thirty million, thirty-one thousand, three hundred one".