3130121313 has 80 divisors (see below), whose sum is σ = 5603558400. Its totient is φ = 1718845920.

The previous prime is 3130121303. The next prime is 3130121339. The reversal of 3130121313 is 3131210313.

It is a happy number.

3130121313 is a `hidden beast` number, since 31 + 301 + 21 + 313 = 666.

3130121313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3130121313 - 2⁶ = 3130121249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3130121303) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 385348 + ... + 393386.

It is an arithmetic number, because the mean of its divisors is an integer number (70044480).

Almost surely, 2^3130121313 is an apocalyptic number.

3130121313 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3130121313 is a deficient number, since it is larger than the sum of its proper divisors (2473437087).

3130121313 is a wasteful number, since it uses less digits than its factorization.

3130121313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8104 (or 8095 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 3130121313 is about 55947.4871017457. The cubic root of 3130121313 is about 1462.8070897547.

Adding to 3130121313 its reverse (3131210313), we get a palindrome (6261331626).

The spelling of 3130121313 in words is "three billion, one hundred thirty million, one hundred twenty-one thousand, three hundred thirteen".