213310000243 has 2 divisors, whose sum is σ = 213310000244. Its totient is φ = 213310000242.

The previous prime is 213310000151. The next prime is 213310000349. The reversal of 213310000243 is 342000013312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213310000243 - 2²¹ = 213307903091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213310000243.

It is not a weakly prime, because it can be changed into another prime (213310003243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106655000121 + 106655000122.

It is an arithmetic number, because the mean of its divisors is an integer number (106655000122).

Almost surely, 2^213310000243 is an apocalyptic number.

213310000243 is a deficient number, since it is larger than the sum of its proper divisors (1).

213310000243 is an equidigital number, since it uses as much as digits as its factorization.

213310000243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 213310000243 its reverse (342000013312), we get a palindrome (555310013555).

The spelling of 213310000243 in words is "two hundred thirteen billion, three hundred ten million, two hundred forty-three", and thus it is an aban number.