3213232231 has 4 divisors (see below), whose sum is σ = 3505344264. Its totient is φ = 2921120200.

The previous prime is 3213232213. The next prime is 3213232247. The reversal of 3213232231 is 1322323123.

3213232231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1322323123 = 11 ⋅120211193.

It is a cyclic number.

It is not a de Polignac number, because 3213232231 - 2¹⁷ = 3213101159 is a prime.

It is a super-2 number, since 2×3213232231² = 20649722740674474722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213232931) 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, 146056000 + ... + 146056021.

It is an arithmetic number, because the mean of its divisors is an integer number (876336066).

Almost surely, 2^3213232231 is an apocalyptic number.

3213232231 is a deficient number, since it is larger than the sum of its proper divisors (292112033).

3213232231 is a wasteful number, since it uses less digits than its factorization.

3213232231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292112032.

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

The square root of 3213232231 is about 56685.3793407083. The cubic root of 3213232231 is about 1475.6409710241.

Adding to 3213232231 its reverse (1322323123), we get a palindrome (4535555354).

The spelling of 3213232231 in words is "three billion, two hundred thirteen million, two hundred thirty-two thousand, two hundred thirty-one".