213211333203231 has 24 divisors (see below), whose sum is σ = 320096353519152. Its totient is φ = 126067307132800.

The previous prime is 213211333203199. The next prime is 213211333203233. The reversal of 213211333203231 is 132302333112312.

It is not a de Polignac number, because 213211333203231 - 2⁵ = 213211333203199 is a prime.

It is a super-2 number, since 2×213211333203231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213211333203233) 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 23 ways as a sum of consecutive naturals, for example, 7162900296 + ... + 7162930061.

It is an arithmetic number, because the mean of its divisors is an integer number (13337348063298).

Almost surely, 2^{213211333203231} is an apocalyptic number.

213211333203231 is a deficient number, since it is larger than the sum of its proper divisors (106885020315921).

213211333203231 is a wasteful number, since it uses less digits than its factorization.

213211333203231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14325830423 (or 14325830412 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 30.

Adding to 213211333203231 its reverse (132302333112312), we get a palindrome (345513666315543).

The spelling of 213211333203231 in words is "two hundred thirteen trillion, two hundred eleven billion, three hundred thirty-three million, two hundred three thousand, two hundred thirty-one".