3031130021 has 16 divisors (see below), whose sum is σ = 3281266560. Its totient is φ = 2790262080.

The previous prime is 3031129999. The next prime is 3031130027. The reversal of 3031130021 is 1200311303.

It is a cyclic number.

It is not a de Polignac number, because 3031130021 - 2¹⁴ = 3031113637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3031129978 and 3031130005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3031130027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 621131 + ... + 625991.

It is an arithmetic number, because the mean of its divisors is an integer number (205079160).

Almost surely, 2^3031130021 is an apocalyptic number.

It is an amenable number.

3031130021 is a deficient number, since it is larger than the sum of its proper divisors (250136539).

3031130021 is a wasteful number, since it uses less digits than its factorization.

3031130021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5804.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 3031130021 is about 55055.6992599313. The cubic root of 3031130021 is about 1447.2209985045.

Adding to 3031130021 its reverse (1200311303), we get a palindrome (4231441324).

The spelling of 3031130021 in words is "three billion, thirty-one million, one hundred thirty thousand, twenty-one".