203496313 has 2 divisors, whose sum is σ = 203496314. Its totient is φ = 203496312.

The previous prime is 203496301. The next prime is 203496331. The reversal of 203496313 is 313694302.

Together with next prime (203496331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131721529 + 71774784 = 11477^2 + 8472^2 .

It is a cyclic number.

It is not a de Polignac number, because 203496313 - 2⁵ = 203496281 is a prime.

It is not a weakly prime, because it can be changed into another prime (203496373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101748156 + 101748157.

It is an arithmetic number, because the mean of its divisors is an integer number (101748157).

Almost surely, 2^203496313 is an apocalyptic number.

It is an amenable number.

203496313 is a deficient number, since it is larger than the sum of its proper divisors (1).

203496313 is an equidigital number, since it uses as much as digits as its factorization.

203496313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 203496313 is about 14265.2133878186. The cubic root of 203496313 is about 588.1916410290.

It can be divided in two parts, 20349 and 6313, that added together give a palindrome (26662).

The spelling of 203496313 in words is "two hundred three million, four hundred ninety-six thousand, three hundred thirteen".