21011230083301 has 2 divisors, whose sum is σ = 21011230083302. Its totient is φ = 21011230083300.

The previous prime is 21011230083289. The next prime is 21011230083331. The reversal of 21011230083301 is 10338003211012.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16906290699076 + 4104939384225 = 4111726^2 + 2026065^2 .

It is a cyclic number.

It is not a de Polignac number, because 21011230083301 - 2¹¹ = 21011230081253 is a prime.

It is a super-2 number, since 2×21011230083301² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21011230083331) 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, 10505615041650 + 10505615041651.

It is an arithmetic number, because the mean of its divisors is an integer number (10505615041651).

Almost surely, 2^{21011230083301} is an apocalyptic number.

It is an amenable number.

21011230083301 is a deficient number, since it is larger than the sum of its proper divisors (1).

21011230083301 is an equidigital number, since it uses as much as digits as its factorization.

21011230083301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 21011230083301 its reverse (10338003211012), we get a palindrome (31349233294313).

The spelling of 21011230083301 in words is "twenty-one trillion, eleven billion, two hundred thirty million, eighty-three thousand, three hundred one".