211300233231 has 12 divisors (see below), whose sum is σ = 291783599432. Its totient is φ = 136009343904.

The previous prime is 211300233229. The next prime is 211300233241. The reversal of 211300233231 is 132332003112.

It is not a de Polignac number, because 211300233231 - 2¹ = 211300233229 is a prime.

It is a super-2 number, since 2×211300233231² (a number of 23 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 = 211300233198 and 211300233207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211300233241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41872276 + ... + 41877321.

Almost surely, 2^211300233231 is an apocalyptic number.

211300233231 is a deficient number, since it is larger than the sum of its proper divisors (80483366201).

211300233231 is an equidigital number, since it uses as much as digits as its factorization.

211300233231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83749658 (or 83749629 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 211300233231 its reverse (132332003112), we get a palindrome (343632236343).

The spelling of 211300233231 in words is "two hundred eleven billion, three hundred million, two hundred thirty-three thousand, two hundred thirty-one".