21232330210241 has 2 divisors, whose sum is σ = 21232330210242. Its totient is φ = 21232330210240.

The previous prime is 21232330210237. The next prime is 21232330210283. The reversal of 21232330210241 is 14201203323212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17992315810225 + 3240014400016 = 4241735^2 + 1800004^2 .

It is a cyclic number.

It is not a de Polignac number, because 21232330210241 - 2² = 21232330210237 is a prime.

It is a super-2 number, since 2×21232330210241² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21232330210241.

It is not a weakly prime, because it can be changed into another prime (21232330210141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10616165105120 + 10616165105121.

It is an arithmetic number, because the mean of its divisors is an integer number (10616165105121).

Almost surely, 2^{21232330210241} is an apocalyptic number.

It is an amenable number.

21232330210241 is a deficient number, since it is larger than the sum of its proper divisors (1).

21232330210241 is an equidigital number, since it uses as much as digits as its factorization.

21232330210241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 21232330210241 its reverse (14201203323212), we get a palindrome (35433533533453).

The spelling of 21232330210241 in words is "twenty-one trillion, two hundred thirty-two billion, three hundred thirty million, two hundred ten thousand, two hundred forty-one".