211210302231 has 12 divisors (see below), whose sum is σ = 310082885320. Its totient is φ = 138498558480.

The previous prime is 211210302221. The next prime is 211210302253. The reversal of 211210302231 is 132203012112.

It is not a de Polignac number, because 211210302231 - 2¹⁰ = 211210301207 is a prime.

It is a super-3 number, since 3×211210302231³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211210302221) 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, 192358561 + ... + 192359658.

Almost surely, 2^211210302231 is an apocalyptic number.

211210302231 is a deficient number, since it is larger than the sum of its proper divisors (98872583089).

211210302231 is a wasteful number, since it uses less digits than its factorization.

211210302231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384718286 (or 384718283 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 211210302231 its reverse (132203012112), we get a palindrome (343413314343).

The spelling of 211210302231 in words is "two hundred eleven billion, two hundred ten million, three hundred two thousand, two hundred thirty-one".