213704303 has 2 divisors, whose sum is σ = 213704304. Its totient is φ = 213704302.

The previous prime is 213704287. The next prime is 213704317. The reversal of 213704303 is 303407312.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213704303 - 2⁴ = 213704287 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213704203) 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, 106852151 + 106852152.

It is an arithmetic number, because the mean of its divisors is an integer number (106852152).

Almost surely, 2^213704303 is an apocalyptic number.

213704303 is a deficient number, since it is larger than the sum of its proper divisors (1).

213704303 is an equidigital number, since it uses as much as digits as its factorization.

213704303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 213704303 is about 14618.6286292525. The cubic root of 213704303 is about 597.8667792333.

The spelling of 213704303 in words is "two hundred thirteen million, seven hundred four thousand, three hundred three".