211232232230231 has 4 divisors (see below), whose sum is σ = 211232576639832. Its totient is φ = 211231887820632.

The previous prime is 211232232230213. The next prime is 211232232230249. The reversal of 211232232230231 is 132032232232112.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (211232232230213) and next prime (211232232230249).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211232232230231 is a prime.

It is a super-2 number, since 2×211232232230231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211232232230194 and 211232232230203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211232232230281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171283181 + ... + 172512006.

It is an arithmetic number, because the mean of its divisors is an integer number (52808144159958).

Almost surely, 2^{211232232230231} is an apocalyptic number.

211232232230231 is a deficient number, since it is larger than the sum of its proper divisors (344409601).

211232232230231 is an equidigital number, since it uses as much as digits as its factorization.

211232232230231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344409600.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 211232232230231 its reverse (132032232232112), we get a palindrome (343264464462343).

The spelling of 211232232230231 in words is "two hundred eleven trillion, two hundred thirty-two billion, two hundred thirty-two million, two hundred thirty thousand, two hundred thirty-one".