2331232213 has 4 divisors (see below), whose sum is σ = 2331328780. Its totient is φ = 2331135648.

The previous prime is 2331232201. The next prime is 2331232217. The reversal of 2331232213 is 3122321332.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2317267044 + 13965169 = 48138^2 + 3737^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2331232213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331232217) 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 3 ways as a sum of consecutive naturals, for example, 23953 + ... + 72361.

It is an arithmetic number, because the mean of its divisors is an integer number (582832195).

Almost surely, 2^2331232213 is an apocalyptic number.

It is an amenable number.

2331232213 is a deficient number, since it is larger than the sum of its proper divisors (96567).

2331232213 is an equidigital number, since it uses as much as digits as its factorization.

2331232213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96566.

The product of its digits is 1296, while the sum is 22.

The square root of 2331232213 is about 48282.8355940287. The cubic root of 2331232213 is about 1325.9541650729.

Adding to 2331232213 its reverse (3122321332), we get a palindrome (5453553545).

The spelling of 2331232213 in words is "two billion, three hundred thirty-one million, two hundred thirty-two thousand, two hundred thirteen".