213121203333301 has 2 divisors, whose sum is σ = 213121203333302. Its totient is φ = 213121203333300.

The previous prime is 213121203333293. The next prime is 213121203333377. The reversal of 213121203333301 is 103333302121312.

It is a happy number.

213121203333301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213002378349201 + 118824984100 = 14594601^2 + 344710^2 .

It is a cyclic number.

It is not a de Polignac number, because 213121203333301 - 2³ = 213121203333293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213121203333301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213121203133301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106560601666650 + 106560601666651.

It is an arithmetic number, because the mean of its divisors is an integer number (106560601666651).

Almost surely, 2^{213121203333301} is an apocalyptic number.

It is an amenable number.

213121203333301 is a deficient number, since it is larger than the sum of its proper divisors (1).

213121203333301 is an equidigital number, since it uses as much as digits as its factorization.

213121203333301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 213121203333301 its reverse (103333302121312), we get a palindrome (316454505454613).

The spelling of 213121203333301 in words is "two hundred thirteen trillion, one hundred twenty-one billion, two hundred three million, three hundred thirty-three thousand, three hundred one".