213204307 has 2 divisors, whose sum is σ = 213204308. Its totient is φ = 213204306.

The previous prime is 213204281. The next prime is 213204349. The reversal of 213204307 is 703402312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213204307 - 2⁷ = 213204179 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (213204007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106602153 + 106602154.

It is an arithmetic number, because the mean of its divisors is an integer number (106602154).

Almost surely, 2^213204307 is an apocalyptic number.

213204307 is a deficient number, since it is larger than the sum of its proper divisors (1).

213204307 is an equidigital number, since it uses as much as digits as its factorization.

213204307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 213204307 is about 14601.5172841729. The cubic root of 213204307 is about 597.4001462424.

Adding to 213204307 its reverse (703402312), we get a palindrome (916606619).

The spelling of 213204307 in words is "two hundred thirteen million, two hundred four thousand, three hundred seven".