2312333221 has 16 divisors (see below), whose sum is σ = 2637992448. Its totient is φ = 2006316400.

The previous prime is 2312333203. The next prime is 2312333227. The reversal of 2312333221 is 1223332132.

It is not a de Polignac number, because 2312333221 - 2⁵ = 2312333189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2312333192 and 2312333201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312333227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108366 + ... + 127936.

It is an arithmetic number, because the mean of its divisors is an integer number (164874528).

Almost surely, 2^2312333221 is an apocalyptic number.

It is an amenable number.

2312333221 is a deficient number, since it is larger than the sum of its proper divisors (325659227).

2312333221 is a wasteful number, since it uses less digits than its factorization.

2312333221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20072.

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

The square root of 2312333221 is about 48086.7260374420. The cubic root of 2312333221 is about 1322.3613267928.

Adding to 2312333221 its reverse (1223332132), we get a palindrome (3535665353).

It can be divided in two parts, 2312 and 333221, that added together give a palindrome (335533).

The spelling of 2312333221 in words is "two billion, three hundred twelve million, three hundred thirty-three thousand, two hundred twenty-one".