2003134021 has 16 divisors (see below), whose sum is σ = 2436293376. Its totient is φ = 1607751936.

The previous prime is 2003134013. The next prime is 2003134057. The reversal of 2003134021 is 1204313002.

It is a happy number.

It is not a de Polignac number, because 2003134021 - 2³ = 2003134013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2003133986 and 2003134004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003134061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19281 + ... + 66166.

It is an arithmetic number, because the mean of its divisors is an integer number (152268336).

Almost surely, 2^2003134021 is an apocalyptic number.

It is an amenable number.

2003134021 is a deficient number, since it is larger than the sum of its proper divisors (433159355).

2003134021 is a wasteful number, since it uses less digits than its factorization.

2003134021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85668.

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

The square root of 2003134021 is about 44756.3852539501. The cubic root of 2003134021 is about 1260.5788096137.

Adding to 2003134021 its reverse (1204313002), we get a palindrome (3207447023).

The spelling of 2003134021 in words is "two billion, three million, one hundred thirty-four thousand, twenty-one".