3012130521 has 24 divisors (see below), whose sum is σ = 4572384960. Its totient is φ = 1908367776.

The previous prime is 3012130519. The next prime is 3012130543. The reversal of 3012130521 is 1250312103.

3012130521 is a `hidden beast` number, since 3 + 0 + 12 + 130 + 521 = 666.

It is not a de Polignac number, because 3012130521 - 2¹ = 3012130519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3012130494 and 3012130503.

It is not an unprimeable number, because it can be changed into a prime (3012130421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90861 + ... + 119498.

It is an arithmetic number, because the mean of its divisors is an integer number (190516040).

Almost surely, 2^3012130521 is an apocalyptic number.

It is an amenable number.

3012130521 is a deficient number, since it is larger than the sum of its proper divisors (1560254439).

3012130521 is a wasteful number, since it uses less digits than its factorization.

3012130521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210445 (or 210442 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 3012130521 is about 54882.8800355812. The cubic root of 3012130521 is about 1444.1908715099.

Adding to 3012130521 its reverse (1250312103), we get a palindrome (4262442624).

The spelling of 3012130521 in words is "three billion, twelve million, one hundred thirty thousand, five hundred twenty-one".