21233020301 has 2 divisors, whose sum is σ = 21233020302. Its totient is φ = 21233020300.

The previous prime is 21233020273. The next prime is 21233020337. The reversal of 21233020301 is 10302033212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19106427076 + 2126593225 = 138226^2 + 46115^2 .

It is a cyclic number.

It is not a de Polignac number, because 21233020301 - 2¹⁴ = 21233003917 is a prime.

It is a super-2 number, since 2×21233020301² (a number of 21 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 21233020301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21233020381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10616510150 + 10616510151.

It is an arithmetic number, because the mean of its divisors is an integer number (10616510151).

Almost surely, 2^21233020301 is an apocalyptic number.

It is an amenable number.

21233020301 is a deficient number, since it is larger than the sum of its proper divisors (1).

21233020301 is an equidigital number, since it uses as much as digits as its factorization.

21233020301 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 17.

Adding to 21233020301 its reverse (10302033212), we get a palindrome (31535053513).

The spelling of 21233020301 in words is "twenty-one billion, two hundred thirty-three million, twenty thousand, three hundred one".