2313221204 has 72 divisors (see below), whose sum is σ = 4860633960. Its totient is φ = 960446592.

The previous prime is 2313221171. The next prime is 2313221213. The reversal of 2313221204 is 4021223132.

It can be written as a sum of positive squares in 4 ways, for example, as 578498704 + 1734722500 = 24052^2 + 41650^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9927872 + ... + 9928104.

It is an arithmetic number, because the mean of its divisors is an integer number (67508805).

Almost surely, 2^2313221204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2313221204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2430316980).

2313221204 is an abundant number, since it is smaller than the sum of its proper divisors (2547412756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2313221204 is an equidigital number, since it uses as much as digits as its factorization.

2313221204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2313221204 is about 48095.9582917317. The cubic root of 2313221204 is about 1322.5305763469.

Adding to 2313221204 its reverse (4021223132), we get a palindrome (6334444336).

The spelling of 2313221204 in words is "two billion, three hundred thirteen million, two hundred twenty-one thousand, two hundred four".