2003131003 has 2 divisors, whose sum is σ = 2003131004. Its totient is φ = 2003131002.

The previous prime is 2003131001. The next prime is 2003131021. The reversal of 2003131003 is 3001313002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2003131003 - 2¹ = 2003131001 is a prime.

Together with 2003131001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2003131001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001565501 + 1001565502.

It is an arithmetic number, because the mean of its divisors is an integer number (1001565502).

Almost surely, 2^2003131003 is an apocalyptic number.

2003131003 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003131003 is an equidigital number, since it uses as much as digits as its factorization.

2003131003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 2003131003 is about 44756.3515380778. The cubic root of 2003131003 is about 1260.5781765343.

Adding to 2003131003 its reverse (3001313002), we get a palindrome (5004444005).

The spelling of 2003131003 in words is "two billion, three million, one hundred thirty-one thousand, three".