3130331321 has 16 divisors (see below), whose sum is σ = 3444244608. Its totient is φ = 2827440000.

The previous prime is 3130331297. The next prime is 3130331341. The reversal of 3130331321 is 1231330313.

It is a cyclic number.

It is not a de Polignac number, because 3130331321 - 2²² = 3126137017 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 = 3130331293 and 3130331302.

It is not an unprimeable number, because it can be changed into a prime (3130331341) 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, 119621 + ... + 143421.

It is an arithmetic number, because the mean of its divisors is an integer number (215265288).

Almost surely, 2^3130331321 is an apocalyptic number.

It is an amenable number.

3130331321 is a deficient number, since it is larger than the sum of its proper divisors (313913287).

3130331321 is a wasteful number, since it uses less digits than its factorization.

3130331321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24032.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 3130331321 is about 55949.3639016566. The cubic root of 3130331321 is about 1462.8398035369.

Adding to 3130331321 its reverse (1231330313), we get a palindrome (4361661634).

The spelling of 3130331321 in words is "three billion, one hundred thirty million, three hundred thirty-one thousand, three hundred twenty-one".