213211703 has 2 divisors, whose sum is σ = 213211704. Its totient is φ = 213211702.

The previous prime is 213211681. The next prime is 213211709. The reversal of 213211703 is 307112312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213211703 - 2⁶ = 213211639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213211709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106605851 + 106605852.

It is an arithmetic number, because the mean of its divisors is an integer number (106605852).

Almost surely, 2^213211703 is an apocalyptic number.

213211703 is a deficient number, since it is larger than the sum of its proper divisors (1).

213211703 is an equidigital number, since it uses as much as digits as its factorization.

213211703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 213211703 is about 14601.7705433280. The cubic root of 213211703 is about 597.4070540460.

The spelling of 213211703 in words is "two hundred thirteen million, two hundred eleven thousand, seven hundred three".