2131230213 has 48 divisors (see below), whose sum is σ = 3648153600. Its totient is φ = 1173070080.

The previous prime is 2131230197. The next prime is 2131230221. The reversal of 2131230213 is 3120321312.

It is not a de Polignac number, because 2131230213 - 2⁴ = 2131230197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131230613) 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 47 ways as a sum of consecutive naturals, for example, 950748 + ... + 952986.

It is an arithmetic number, because the mean of its divisors is an integer number (76003200).

Almost surely, 2^2131230213 is an apocalyptic number.

It is an amenable number.

2131230213 is a deficient number, since it is larger than the sum of its proper divisors (1516923387).

2131230213 is a wasteful number, since it uses less digits than its factorization.

2131230213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802 (or 2799 counting only the distinct ones).

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

The square root of 2131230213 is about 46165.2489758260. The cubic root of 2131230213 is about 1286.8960111444.

Adding to 2131230213 its reverse (3120321312), we get a palindrome (5251551525).

The spelling of 2131230213 in words is "two billion, one hundred thirty-one million, two hundred thirty thousand, two hundred thirteen".