2103212331 has 32 divisors (see below), whose sum is σ = 3422016000. Its totient is φ = 1266092640.

The previous prime is 2103212291. The next prime is 2103212357. The reversal of 2103212331 is 1332123012.

2103212331 is a `hidden beast` number, since 2 + 10 + 321 + 2 + 331 = 666.

It is not a de Polignac number, because 2103212331 - 2⁹ = 2103211819 is a prime.

It is a super-2 number, since 2×2103212331² = 8847004218540907122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2103212131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20490 + ... + 68016.

It is an arithmetic number, because the mean of its divisors is an integer number (106938000).

Almost surely, 2^2103212331 is an apocalyptic number.

2103212331 is a deficient number, since it is larger than the sum of its proper divisors (1318803669).

2103212331 is a wasteful number, since it uses less digits than its factorization.

2103212331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47696 (or 47690 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2103212331 is about 45860.7929608724. The cubic root of 2103212331 is about 1281.2317917190.

Adding to 2103212331 its reverse (1332123012), we get a palindrome (3435335343).

The spelling of 2103212331 in words is "two billion, one hundred three million, two hundred twelve thousand, three hundred thirty-one".