2003103311513 has 2 divisors, whose sum is σ = 2003103311514. Its totient is φ = 2003103311512.

The previous prime is 2003103311479. The next prime is 2003103311591. The reversal of 2003103311513 is 3151133013002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1553832054784 + 449271256729 = 1246528^2 + 670277^2 .

It is a cyclic number.

It is not a de Polignac number, because 2003103311513 - 2¹⁰ = 2003103310489 is a prime.

It is not a weakly prime, because it can be changed into another prime (2003103311213) 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 as a sum of consecutive naturals, namely, 1001551655756 + 1001551655757.

It is an arithmetic number, because the mean of its divisors is an integer number (1001551655757).

Almost surely, 2^{2003103311513} is an apocalyptic number.

It is an amenable number.

2003103311513 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003103311513 is an equidigital number, since it uses as much as digits as its factorization.

2003103311513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 23.

Adding to 2003103311513 its reverse (3151133013002), we get a palindrome (5154236324515).

The spelling of 2003103311513 in words is "two trillion, three billion, one hundred three million, three hundred eleven thousand, five hundred thirteen".