203311131013 has 2 divisors, whose sum is σ = 203311131014. Its totient is φ = 203311131012.

The previous prime is 203311130989. The next prime is 203311131061. The reversal of 203311131013 is 310131113302.

203311131013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198593227044 + 4717903969 = 445638^2 + 68687^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203311131013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203311131113) 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, 101655565506 + 101655565507.

It is an arithmetic number, because the mean of its divisors is an integer number (101655565507).

Almost surely, 2^203311131013 is an apocalyptic number.

It is an amenable number.

203311131013 is a deficient number, since it is larger than the sum of its proper divisors (1).

203311131013 is an equidigital number, since it uses as much as digits as its factorization.

203311131013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 203311131013 its reverse (310131113302), we get a palindrome (513442244315).

The spelling of 203311131013 in words is "two hundred three billion, three hundred eleven million, one hundred thirty-one thousand, thirteen".