2013030021 has 8 divisors (see below), whose sum is σ = 2684532384. Its totient is φ = 1341773840.

The previous prime is 2013030001. The next prime is 2013030067. The reversal of 2013030021 is 1200303102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2013030021 - 2⁶ = 2013029957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2013029979 and 2013030006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013030001) 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 7 ways as a sum of consecutive naturals, for example, 41535 + ... + 75836.

It is an arithmetic number, because the mean of its divisors is an integer number (335566548).

Almost surely, 2^2013030021 is an apocalyptic number.

It is an amenable number.

2013030021 is a deficient number, since it is larger than the sum of its proper divisors (671502363).

2013030021 is a wasteful number, since it uses less digits than its factorization.

2013030021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123091.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2013030021 is about 44866.8031065286. The cubic root of 2013030021 is about 1262.6512622867.

Adding to 2013030021 its reverse (1200303102), we get a palindrome (3213333123).

The spelling of 2013030021 in words is "two billion, thirteen million, thirty thousand, twenty-one".