3130121013 has 4 divisors (see below), whose sum is σ = 4173494688. Its totient is φ = 2086747340.

The previous prime is 3130120979. The next prime is 3130121017. The reversal of 3130121013 is 3101210313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3130121013 - 2¹⁰ = 3130119989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3130120983 and 3130121001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130121017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521686833 + ... + 521686838.

It is an arithmetic number, because the mean of its divisors is an integer number (1043373672).

Almost surely, 2^3130121013 is an apocalyptic number.

It is an amenable number.

3130121013 is a deficient number, since it is larger than the sum of its proper divisors (1043373675).

3130121013 is a wasteful number, since it uses less digits than its factorization.

3130121013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043373674.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 3130121013 is about 55947.4844206601. The cubic root of 3130121013 is about 1462.8070430214.

Adding to 3130121013 its reverse (3101210313), we get a palindrome (6231331326).

The spelling of 3130121013 in words is "three billion, one hundred thirty million, one hundred twenty-one thousand, thirteen".