203002013311013 has 12 divisors (see below), whose sum is σ = 237730066274700. Its totient is φ = 172833928872192.

The previous prime is 203002013311001. The next prime is 203002013311061. The reversal of 203002013311013 is 310113310200302.

It can be written as a sum of positive squares in 2 ways, for example, as 49890517675684 + 153111495635329 = 7063322^2 + 12373823^2 .

It is not a de Polignac number, because 203002013311013 - 2⁴ = 203002013310997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203002013311073) 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 in 11 ways as a sum of consecutive naturals, for example, 13902335756 + ... + 13902350357.

It is an arithmetic number, because the mean of its divisors is an integer number (19810838856225).

Almost surely, 2^{203002013311013} is an apocalyptic number.

It is an amenable number.

203002013311013 is a deficient number, since it is larger than the sum of its proper divisors (34728052963687).

203002013311013 is a wasteful number, since it uses less digits than its factorization.

203002013311013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27804686276 (or 27804686269 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 203002013311013 its reverse (310113310200302), we get a palindrome (513115323511315).

The spelling of 203002013311013 in words is "two hundred three trillion, two billion, thirteen million, three hundred eleven thousand, thirteen".