2103211231 has 6 divisors (see below), whose sum is σ = 2311794296. Its totient is φ = 1912010100.

The previous prime is 2103211223. The next prime is 2103211247. The reversal of 2103211231 is 1321123012.

It is not a de Polignac number, because 2103211231 - 2³ = 2103211223 is a prime.

It is a super-2 number, since 2×2103211231² = 8846994964409070722, which 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 (2103211531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8690835 + ... + 8691076.

Almost surely, 2^2103211231 is an apocalyptic number.

2103211231 is a deficient number, since it is larger than the sum of its proper divisors (208583065).

2103211231 is a wasteful number, since it uses less digits than its factorization.

2103211231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17381933 (or 17381922 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2103211231 is about 45860.7809680559. The cubic root of 2103211231 is about 1281.2315683535.

Adding to 2103211231 its reverse (1321123012), we get a palindrome (3424334243).

The spelling of 2103211231 in words is "two billion, one hundred three million, two hundred eleven thousand, two hundred thirty-one".