213243230471 has 2 divisors, whose sum is σ = 213243230472. Its totient is φ = 213243230470.

The previous prime is 213243230467. The next prime is 213243230491. The reversal of 213243230471 is 174032342312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213243230471 - 2² = 213243230467 is a prime.

It is a super-3 number, since 3×213243230471³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213243230491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106621615235 + 106621615236.

It is an arithmetic number, because the mean of its divisors is an integer number (106621615236).

Almost surely, 2^213243230471 is an apocalyptic number.

213243230471 is a deficient number, since it is larger than the sum of its proper divisors (1).

213243230471 is an equidigital number, since it uses as much as digits as its factorization.

213243230471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 32.

Adding to 213243230471 its reverse (174032342312), we get a palindrome (387275572783).

The spelling of 213243230471 in words is "two hundred thirteen billion, two hundred forty-three million, two hundred thirty thousand, four hundred seventy-one".