2013403021 has 8 divisors (see below), whose sum is σ = 2309987520. Its totient is φ = 1719057408.

The previous prime is 2013403013. The next prime is 2013403069. The reversal of 2013403021 is 1203043102.

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 2013403021 - 2³ = 2013403013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2013402986 and 2013403004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013403081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557791 + ... + 561388.

It is an arithmetic number, because the mean of its divisors is an integer number (288748440).

Almost surely, 2^2013403021 is an apocalyptic number.

It is an amenable number.

2013403021 is a deficient number, since it is larger than the sum of its proper divisors (296584499).

2013403021 is a wasteful number, since it uses less digits than its factorization.

2013403021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119443.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2013403021 is about 44870.9596621245. The cubic root of 2013403021 is about 1262.7292442061.

Adding to 2013403021 its reverse (1203043102), we get a palindrome (3216446123).

The spelling of 2013403021 in words is "two billion, thirteen million, four hundred three thousand, twenty-one".