3130121005 has 64 divisors (see below), whose sum is σ = 4490235648. Its totient is φ = 2068623360.

The previous prime is 3130120979. The next prime is 3130121017. The reversal of 3130121005 is 5001210313.

It is not a de Polignac number, because 3130121005 - 2⁹ = 3130120493 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3130121005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5984674 + ... + 5985196.

It is an arithmetic number, because the mean of its divisors is an integer number (70159932).

Almost surely, 2^3130121005 is an apocalyptic number.

It is an amenable number.

3130121005 is a deficient number, since it is larger than the sum of its proper divisors (1360114643).

3130121005 is a wasteful number, since it uses less digits than its factorization.

3130121005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 3130121005 is about 55947.4843491644. The cubic root of 3130121005 is about 1462.8070417752.

Adding to 3130121005 its reverse (5001210313), we get a palindrome (8131331318).

The spelling of 3130121005 in words is "three billion, one hundred thirty million, one hundred twenty-one thousand, five".