210031212231 has 6 divisors (see below), whose sum is σ = 303378417680. Its totient is φ = 140020808148.

The previous prime is 210031212227. The next prime is 210031212241. The reversal of 210031212231 is 132212130012.

It is not a de Polignac number, because 210031212231 - 2² = 210031212227 is a prime.

It is a super-2 number, since 2×210031212231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210031212211) 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 5 ways as a sum of consecutive naturals, for example, 11668400671 + ... + 11668400688.

Almost surely, 2^210031212231 is an apocalyptic number.

210031212231 is a deficient number, since it is larger than the sum of its proper divisors (93347205449).

210031212231 is a wasteful number, since it uses less digits than its factorization.

210031212231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23336801365 (or 23336801362 counting only the distinct ones).

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

Adding to 210031212231 its reverse (132212130012), we get a palindrome (342243342243).

The spelling of 210031212231 in words is "two hundred ten billion, thirty-one million, two hundred twelve thousand, two hundred thirty-one".