4021530013 has 16 divisors (see below), whose sum is σ = 4453315200. Its totient is φ = 3612184576.

The previous prime is 4021529989. The next prime is 4021530049. The reversal of 4021530013 is 3100351204.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4021530013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021530053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164106 + ... + 187012.

It is an arithmetic number, because the mean of its divisors is an integer number (278332200).

Almost surely, 2^4021530013 is an apocalyptic number.

It is an amenable number.

4021530013 is a deficient number, since it is larger than the sum of its proper divisors (431785187).

4021530013 is a wasteful number, since it uses less digits than its factorization.

4021530013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23396.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 4021530013 is about 63415.5344769718. The cubic root of 4021530013 is about 1590.2440210632.

Adding to 4021530013 its reverse (3100351204), we get a palindrome (7121881217).

The spelling of 4021530013 in words is "four billion, twenty-one million, five hundred thirty thousand, thirteen".