2331231213 has 8 divisors (see below), whose sum is σ = 3192316768. Its totient is φ = 1512149904.

The previous prime is 2331231191. The next prime is 2331231229. The reversal of 2331231213 is 3121321332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2331231213 - 2¹³ = 2331223021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2331231213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331233213) 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 7 ways as a sum of consecutive naturals, for example, 10500931 + ... + 10501152.

It is an arithmetic number, because the mean of its divisors is an integer number (399039596).

Almost surely, 2^2331231213 is an apocalyptic number.

It is an amenable number.

2331231213 is a deficient number, since it is larger than the sum of its proper divisors (861085555).

2331231213 is a wasteful number, since it uses less digits than its factorization.

2331231213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21002123.

The product of its digits is 648, while the sum is 21.

The square root of 2331231213 is about 48282.8252383806. The cubic root of 2331231213 is about 1325.9539754801.

Adding to 2331231213 its reverse (3121321332), we get a palindrome (5452552545).

The spelling of 2331231213 in words is "two billion, three hundred thirty-one million, two hundred thirty-one thousand, two hundred thirteen".