3113220321 has 12 divisors (see below), whose sum is σ = 4497774372. Its totient is φ = 2075064576.

The previous prime is 3113220301. The next prime is 3113220337. The reversal of 3113220321 is 1230223113.

3113220321 is a `hidden beast` number, since 311 + 32 + 2 + 0 + 321 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1064390625 + 2048829696 = 32625^2 + 45264^2 .

It is not a de Polignac number, because 3113220321 - 2⁷ = 3113220193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3113220294 and 3113220303.

It is not an unprimeable number, because it can be changed into a prime (3113220301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16825 + ... + 80681.

It is an arithmetic number, because the mean of its divisors is an integer number (374814531).

Almost surely, 2^3113220321 is an apocalyptic number.

It is an amenable number.

3113220321 is a deficient number, since it is larger than the sum of its proper divisors (1384554051).

3113220321 is a wasteful number, since it uses less digits than its factorization.

3113220321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69280 (or 69277 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3113220321 is about 55796.2393087563. The cubic root of 3113220321 is about 1460.1695432371.

Adding to 3113220321 its reverse (1230223113), we get a palindrome (4343443434).

The spelling of 3113220321 in words is "three billion, one hundred thirteen million, two hundred twenty thousand, three hundred twenty-one".