212320711 has 2 divisors, whose sum is σ = 212320712. Its totient is φ = 212320710.

The previous prime is 212320699. The next prime is 212320721. The reversal of 212320711 is 117023212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212320711 - 2⁷ = 212320583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212320721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106160355 + 106160356.

It is an arithmetic number, because the mean of its divisors is an integer number (106160356).

Almost surely, 2^212320711 is an apocalyptic number.

212320711 is a deficient number, since it is larger than the sum of its proper divisors (1).

212320711 is an equidigital number, since it uses as much as digits as its factorization.

212320711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 212320711 is about 14571.2288774832. The cubic root of 212320711 is about 596.5737225401.

Adding to 212320711 its reverse (117023212), we get a palindrome (329343923).

The spelling of 212320711 in words is "two hundred twelve million, three hundred twenty thousand, seven hundred eleven".