3121313330 has 8 divisors (see below), whose sum is σ = 5618364012. Its totient is φ = 1248525328.

The previous prime is 3121313329. The next prime is 3121313353. The reversal of 3121313330 is 333131213.

3121313330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2788579249 + 332734081 = 52807^2 + 18241^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156065657 + ... + 156065676.

Almost surely, 2^3121313330 is an apocalyptic number.

3121313330 is a deficient number, since it is larger than the sum of its proper divisors (2497050682).

3121313330 is a wasteful number, since it uses less digits than its factorization.

3121313330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312131340.

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

The square root of 3121313330 is about 55868.7151275202. The cubic root of 3121313330 is about 1461.4337154856.

Adding to 3121313330 its reverse (333131213), we get a palindrome (3454444543).

The spelling of 3121313330 in words is "three billion, one hundred twenty-one million, three hundred thirteen thousand, three hundred thirty".