2340043213 has 2 divisors, whose sum is σ = 2340043214. Its totient is φ = 2340043212.

The previous prime is 2340043163. The next prime is 2340043261. The reversal of 2340043213 is 3123400432.

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., 2326808169 + 13235044 = 48237^2 + 3638^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2340043213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2340043313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1170021606 + 1170021607.

It is an arithmetic number, because the mean of its divisors is an integer number (1170021607).

Almost surely, 2^2340043213 is an apocalyptic number.

It is an amenable number.

2340043213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2340043213 is an equidigital number, since it uses as much as digits as its factorization.

2340043213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 2340043213 is about 48373.9931471447. The cubic root of 2340043213 is about 1327.6225666047.

Adding to 2340043213 its reverse (3123400432), we get a palindrome (5463443645).

The spelling of 2340043213 in words is "two billion, three hundred forty million, forty-three thousand, two hundred thirteen".