213344240233 has 2 divisors, whose sum is σ = 213344240234. Its totient is φ = 213344240232.

The previous prime is 213344240149. The next prime is 213344240251. The reversal of 213344240233 is 332042443312.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210614909184 + 2729331049 = 458928^2 + 52243^2 .

It is a cyclic number.

It is not a de Polignac number, because 213344240233 - 2¹³ = 213344232041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213344240195 and 213344240204.

It is not a weakly prime, because it can be changed into another prime (213344240533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106672120116 + 106672120117.

It is an arithmetic number, because the mean of its divisors is an integer number (106672120117).

Almost surely, 2^213344240233 is an apocalyptic number.

It is an amenable number.

213344240233 is a deficient number, since it is larger than the sum of its proper divisors (1).

213344240233 is an equidigital number, since it uses as much as digits as its factorization.

213344240233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 213344240233 its reverse (332042443312), we get a palindrome (545386683545).

The spelling of 213344240233 in words is "two hundred thirteen billion, three hundred forty-four million, two hundred forty thousand, two hundred thirty-three".