212431327 has 2 divisors, whose sum is σ = 212431328. Its totient is φ = 212431326.

The previous prime is 212431301. The next prime is 212431357. The reversal of 212431327 is 723134212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212431327 - 2¹¹ = 212429279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212431357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106215663 + 106215664.

It is an arithmetic number, because the mean of its divisors is an integer number (106215664).

Almost surely, 2^212431327 is an apocalyptic number.

212431327 is a deficient number, since it is larger than the sum of its proper divisors (1).

212431327 is an equidigital number, since it uses as much as digits as its factorization.

212431327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 25.

The square root of 212431327 is about 14575.0240823129. The cubic root of 212431327 is about 596.6773066290.

Adding to 212431327 its reverse (723134212), we get a palindrome (935565539).

The spelling of 212431327 in words is "two hundred twelve million, four hundred thirty-one thousand, three hundred twenty-seven".