213303021013 has 2 divisors, whose sum is σ = 213303021014. Its totient is φ = 213303021012.

The previous prime is 213303021011. The next prime is 213303021053. The reversal of 213303021013 is 310120303312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193087299889 + 20215721124 = 439417^2 + 142182^2 .

It is a cyclic number.

It is not a de Polignac number, because 213303021013 - 2¹ = 213303021011 is a prime.

Together with 213303021011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213303021011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106651510506 + 106651510507.

It is an arithmetic number, because the mean of its divisors is an integer number (106651510507).

Almost surely, 2^213303021013 is an apocalyptic number.

It is an amenable number.

213303021013 is a deficient number, since it is larger than the sum of its proper divisors (1).

213303021013 is an equidigital number, since it uses as much as digits as its factorization.

213303021013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 213303021013 its reverse (310120303312), we get a palindrome (523423324325).

The spelling of 213303021013 in words is "two hundred thirteen billion, three hundred three million, twenty-one thousand, thirteen".