211231123132133 has 24 divisors (see below), whose sum is σ = 229043484818208. Its totient is φ = 194714993333952.

The previous prime is 211231123132109. The next prime is 211231123132181. The reversal of 211231123132133 is 331231321132112.

It is not a de Polignac number, because 211231123132133 - 2¹⁰ = 211231123131109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211231123132096 and 211231123132105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211231123132193) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3863933066 + ... + 3863987732.

It is an arithmetic number, because the mean of its divisors is an integer number (9543478534092).

Almost surely, 2^{211231123132133} is an apocalyptic number.

It is an amenable number.

211231123132133 is a deficient number, since it is larger than the sum of its proper divisors (17812361686075).

211231123132133 is a wasteful number, since it uses less digits than its factorization.

211231123132133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85653 (or 85640 counting only the distinct ones).

The product of its digits is 3888, while the sum is 29.

Adding to 211231123132133 its reverse (331231321132112), we get a palindrome (542462444264245).

The spelling of 211231123132133 in words is "two hundred eleven trillion, two hundred thirty-one billion, one hundred twenty-three million, one hundred thirty-two thousand, one hundred thirty-three".