211331230223 has 4 divisors (see below), whose sum is σ = 211484259288. Its totient is φ = 211178201160.

The previous prime is 211331230199. The next prime is 211331230237. The reversal of 211331230223 is 322032133112.

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

It is a cyclic number.

It is not a de Polignac number, because 211331230223 - 2³⁴ = 194151361039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211331236223) 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 in 3 ways as a sum of consecutive naturals, for example, 76512461 + ... + 76515222.

It is an arithmetic number, because the mean of its divisors is an integer number (52871064822).

Almost surely, 2^211331230223 is an apocalyptic number.

211331230223 is a deficient number, since it is larger than the sum of its proper divisors (153029065).

211331230223 is a wasteful number, since it uses less digits than its factorization.

211331230223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153029064.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 211331230223 its reverse (322032133112), we get a palindrome (533363363335).

The spelling of 211331230223 in words is "two hundred eleven billion, three hundred thirty-one million, two hundred thirty thousand, two hundred twenty-three".