3130312121 has 4 divisors (see below), whose sum is σ = 3266412672. Its totient is φ = 2994211572.

The previous prime is 3130312069. The next prime is 3130312169. The reversal of 3130312121 is 1212130313.

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 3130312121 - 2¹⁰ = 3130311097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3130312121.

It is not an unprimeable number, because it can be changed into a prime (3130312021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68050241 + ... + 68050286.

It is an arithmetic number, because the mean of its divisors is an integer number (816603168).

Almost surely, 2^3130312121 is an apocalyptic number.

It is an amenable number.

3130312121 is a deficient number, since it is larger than the sum of its proper divisors (136100551).

3130312121 is a wasteful number, since it uses less digits than its factorization.

3130312121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136100550.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 3130312121 is about 55949.1923176734. The cubic root of 3130312121 is about 1462.8368127373.

Adding to 3130312121 its reverse (1212130313), we get a palindrome (4342442434).

The spelling of 3130312121 in words is "three billion, one hundred thirty million, three hundred twelve thousand, one hundred twenty-one".