2103231213 has 12 divisors (see below), whose sum is σ = 3039710908. Its totient is φ = 1401364800.

The previous prime is 2103231197. The next prime is 2103231223. The reversal of 2103231213 is 3121323012.

It can be written as a sum of positive squares in 2 ways, for example, as 203404644 + 1899826569 = 14262^2 + 43587^2 .

It is not a de Polignac number, because 2103231213 - 2⁴ = 2103231197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103231223) 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 11 ways as a sum of consecutive naturals, for example, 48670 + ... + 81087.

Almost surely, 2^2103231213 is an apocalyptic number.

It is an amenable number.

2103231213 is a deficient number, since it is larger than the sum of its proper divisors (936479695).

2103231213 is a wasteful number, since it uses less digits than its factorization.

2103231213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131564 (or 131561 counting only the distinct ones).

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

The square root of 2103231213 is about 45860.9988225289. The cubic root of 2103231213 is about 1281.2356258772.

Adding to 2103231213 its reverse (3121323012), we get a palindrome (5224554225).

The spelling of 2103231213 in words is "two billion, one hundred three million, two hundred thirty-one thousand, two hundred thirteen".