213211213253 has 2 divisors, whose sum is σ = 213211213254. Its totient is φ = 213211213252.

The previous prime is 213211213249. The next prime is 213211213289. The reversal of 213211213253 is 352312112312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211620240484 + 1590972769 = 460022^2 + 39887^2 .

It is a cyclic number.

It is not a de Polignac number, because 213211213253 - 2² = 213211213249 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213211210253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106605606626 + 106605606627.

It is an arithmetic number, because the mean of its divisors is an integer number (106605606627).

Almost surely, 2^213211213253 is an apocalyptic number.

It is an amenable number.

213211213253 is a deficient number, since it is larger than the sum of its proper divisors (1).

213211213253 is an equidigital number, since it uses as much as digits as its factorization.

213211213253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 26.

Adding to 213211213253 its reverse (352312112312), we get a palindrome (565523325565).

The spelling of 213211213253 in words is "two hundred thirteen billion, two hundred eleven million, two hundred thirteen thousand, two hundred fifty-three".