21002201230013 has 2 divisors, whose sum is σ = 21002201230014. Its totient is φ = 21002201230012.

The previous prime is 21002201230001. The next prime is 21002201230037. The reversal of 21002201230013 is 31003210220012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10823817061849 + 10178384168164 = 3289957^2 + 3190358^2 .

It is a cyclic number.

It is not a de Polignac number, because 21002201230013 - 2⁶ = 21002201229949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21002201229973 and 21002201230000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21002201230313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10501100615006 + 10501100615007.

It is an arithmetic number, because the mean of its divisors is an integer number (10501100615007).

Almost surely, 2^{21002201230013} is an apocalyptic number.

It is an amenable number.

21002201230013 is a deficient number, since it is larger than the sum of its proper divisors (1).

21002201230013 is an equidigital number, since it uses as much as digits as its factorization.

21002201230013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21002201230013 its reverse (31003210220012), we get a palindrome (52005411450025).

The spelling of 21002201230013 in words is "twenty-one trillion, two billion, two hundred one million, two hundred thirty thousand, thirteen".