2313332221 has 8 divisors (see below), whose sum is σ = 2331875000. Its totient is φ = 2294853120.

The previous prime is 2313332173. The next prime is 2313332279. The reversal of 2313332221 is 1222333132.

It can be written as a sum of positive squares in 4 ways, for example, as 306740196 + 2006592025 = 17514^2 + 44795^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2313332221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2313332192 and 2313332201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2313332321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58405 + ... + 89653.

It is an arithmetic number, because the mean of its divisors is an integer number (291484375).

Almost surely, 2^2313332221 is an apocalyptic number.

It is an amenable number.

2313332221 is a deficient number, since it is larger than the sum of its proper divisors (18542779).

2313332221 is a wasteful number, since it uses less digits than its factorization.

2313332221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31839.

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

The square root of 2313332221 is about 48097.1123977313. The cubic root of 2313332221 is about 1322.5517331402.

Adding to 2313332221 its reverse (1222333132), we get a palindrome (3535665353).

The spelling of 2313332221 in words is "two billion, three hundred thirteen million, three hundred thirty-two thousand, two hundred twenty-one".