2003202013 has 4 divisors (see below), whose sum is σ = 2003338908. Its totient is φ = 2003065120.

The previous prime is 2003202007. The next prime is 2003202017. The reversal of 2003202013 is 3102023002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 645058404 + 1358143609 = 25398^2 + 36853^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2003202013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2003201984 and 2003202002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003202017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43456 + ... + 76777.

It is an arithmetic number, because the mean of its divisors is an integer number (500834727).

Almost surely, 2^2003202013 is an apocalyptic number.

It is an amenable number.

2003202013 is a deficient number, since it is larger than the sum of its proper divisors (136895).

2003202013 is a wasteful number, since it uses less digits than its factorization.

2003202013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136894.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 2003202013 is about 44757.1448262733. The cubic root of 2003202013 is about 1260.5930719819.

Adding to 2003202013 its reverse (3102023002), we get a palindrome (5105225015).

The spelling of 2003202013 in words is "two billion, three million, two hundred two thousand, thirteen".