213343307 has 2 divisors, whose sum is σ = 213343308. Its totient is φ = 213343306.

The previous prime is 213343297. The next prime is 213343309. The reversal of 213343307 is 703343312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213343307 - 2⁶ = 213343243 is a prime.

Together with 213343309, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (213343309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106671653 + 106671654.

It is an arithmetic number, because the mean of its divisors is an integer number (106671654).

Almost surely, 2^213343307 is an apocalyptic number.

213343307 is a deficient number, since it is larger than the sum of its proper divisors (1).

213343307 is an equidigital number, since it uses as much as digits as its factorization.

213343307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 26.

The square root of 213343307 is about 14606.2762879524. The cubic root of 213343307 is about 597.5299444036.

Adding to 213343307 its reverse (703343312), we get a palindrome (916686619).

The spelling of 213343307 in words is "two hundred thirteen million, three hundred forty-three thousand, three hundred seven".