212303071 has 2 divisors, whose sum is σ = 212303072. Its totient is φ = 212303070.

The previous prime is 212303059. The next prime is 212303137. The reversal of 212303071 is 170303212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212303071 - 2²³ = 203914463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212303011) 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, 106151535 + 106151536.

It is an arithmetic number, because the mean of its divisors is an integer number (106151536).

Almost surely, 2^212303071 is an apocalyptic number.

212303071 is a deficient number, since it is larger than the sum of its proper divisors (1).

212303071 is an equidigital number, since it uses as much as digits as its factorization.

212303071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 212303071 is about 14570.6235624972. The cubic root of 212303071 is about 596.5572005973.

Adding to 212303071 its reverse (170303212), we get a palindrome (382606283).

The spelling of 212303071 in words is "two hundred twelve million, three hundred three thousand, seventy-one".