2031232213 has 4 divisors (see below), whose sum is σ = 2031798028. Its totient is φ = 2030666400.

The previous prime is 2031232207. The next prime is 2031232241. The reversal of 2031232213 is 3122321302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 526335364 + 1504896849 = 22942^2 + 38793^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031232213 - 2²⁹ = 1494361301 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 (2031232243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277488 + ... + 284713.

It is an arithmetic number, because the mean of its divisors is an integer number (507949507).

Almost surely, 2^2031232213 is an apocalyptic number.

It is an amenable number.

2031232213 is a deficient number, since it is larger than the sum of its proper divisors (565815).

2031232213 is an equidigital number, since it uses as much as digits as its factorization.

2031232213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565814.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2031232213 is about 45069.1936138201. The cubic root of 2031232213 is about 1266.4455581354.

Adding to 2031232213 its reverse (3122321302), we get a palindrome (5153553515).

It can be divided in two parts, 20312 and 32213, that added together give a palindrome (52525).

The spelling of 2031232213 in words is "two billion, thirty-one million, two hundred thirty-two thousand, two hundred thirteen".