213243133303 has 2 divisors, whose sum is σ = 213243133304. Its totient is φ = 213243133302.

The previous prime is 213243133283. The next prime is 213243133357. The reversal of 213243133303 is 303331342312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213243133303 - 2³⁷ = 75804179831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213243133403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106621566651 + 106621566652.

It is an arithmetic number, because the mean of its divisors is an integer number (106621566652).

Almost surely, 2^213243133303 is an apocalyptic number.

213243133303 is a deficient number, since it is larger than the sum of its proper divisors (1).

213243133303 is an equidigital number, since it uses as much as digits as its factorization.

213243133303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 213243133303 its reverse (303331342312), we get a palindrome (516574475615).

The spelling of 213243133303 in words is "two hundred thirteen billion, two hundred forty-three million, one hundred thirty-three thousand, three hundred three".