213301234243 has 2 divisors, whose sum is σ = 213301234244. Its totient is φ = 213301234242.

The previous prime is 213301234219. The next prime is 213301234247. The reversal of 213301234243 is 342432103312.

It is a happy number.

213301234243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213301234243 is a prime.

It is not a weakly prime, because it can be changed into another prime (213301234247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106650617121 + 106650617122.

It is an arithmetic number, because the mean of its divisors is an integer number (106650617122).

Almost surely, 2^213301234243 is an apocalyptic number.

213301234243 is a deficient number, since it is larger than the sum of its proper divisors (1).

213301234243 is an equidigital number, since it uses as much as digits as its factorization.

213301234243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 213301234243 its reverse (342432103312), we get a palindrome (555733337555).

The spelling of 213301234243 in words is "two hundred thirteen billion, three hundred one million, two hundred thirty-four thousand, two hundred forty-three".