2323311221 has 16 divisors (see below), whose sum is σ = 2904698880. Its totient is φ = 1805308080.

The previous prime is 2323311187. The next prime is 2323311247. The reversal of 2323311221 is 1221133232.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2323311221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2323311193 and 2323311202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2323311271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14381 + ... + 69666.

It is an arithmetic number, because the mean of its divisors is an integer number (181543680).

Almost surely, 2^2323311221 is an apocalyptic number.

It is an amenable number.

2323311221 is a deficient number, since it is larger than the sum of its proper divisors (581387659).

2323311221 is a wasteful number, since it uses less digits than its factorization.

2323311221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84424.

The product of its digits is 432, while the sum is 20.

The square root of 2323311221 is about 48200.7388013918. The cubic root of 2323311221 is about 1324.4506983325.

Adding to 2323311221 its reverse (1221133232), we get a palindrome (3544444453).

The spelling of 2323311221 in words is "two billion, three hundred twenty-three million, three hundred eleven thousand, two hundred twenty-one".