21302211210113 has 2 divisors, whose sum is σ = 21302211210114. Its totient is φ = 21302211210112.

The previous prime is 21302211210103. The next prime is 21302211210127. The reversal of 21302211210113 is 31101211220312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15047750414449 + 6254460795664 = 3879143^2 + 2500892^2 .

It is a cyclic number.

It is not a de Polignac number, because 21302211210113 - 2⁴ = 21302211210097 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (21302211210103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10651105605056 + 10651105605057.

It is an arithmetic number, because the mean of its divisors is an integer number (10651105605057).

Almost surely, 2^{21302211210113} is an apocalyptic number.

It is an amenable number.

21302211210113 is a deficient number, since it is larger than the sum of its proper divisors (1).

21302211210113 is an equidigital number, since it uses as much as digits as its factorization.

21302211210113 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 20.

Adding to 21302211210113 its reverse (31101211220312), we get a palindrome (52403422430425).

The spelling of 21302211210113 in words is "twenty-one trillion, three hundred two billion, two hundred eleven million, two hundred ten thousand, one hundred thirteen".