210011311213321 has 2 divisors, whose sum is σ = 210011311213322. Its totient is φ = 210011311213320.

The previous prime is 210011311213313. The next prime is 210011311213349. The reversal of 210011311213321 is 123312113110012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209964736825600 + 46574387721 = 14490160^2 + 215811^2 .

It is a cyclic number.

It is not a de Polignac number, because 210011311213321 - 2³ = 210011311213313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210011311213292 and 210011311213301.

It is not a weakly prime, because it can be changed into another prime (210011311213351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105005655606660 + 105005655606661.

It is an arithmetic number, because the mean of its divisors is an integer number (105005655606661).

Almost surely, 2^{210011311213321} is an apocalyptic number.

It is an amenable number.

210011311213321 is a deficient number, since it is larger than the sum of its proper divisors (1).

210011311213321 is an equidigital number, since it uses as much as digits as its factorization.

210011311213321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 210011311213321 its reverse (123312113110012), we get a palindrome (333323424323333).

The spelling of 210011311213321 in words is "two hundred ten trillion, eleven billion, three hundred eleven million, two hundred thirteen thousand, three hundred twenty-one".