203004303413 has 2 divisors, whose sum is σ = 203004303414. Its totient is φ = 203004303412.

The previous prime is 203004303407. The next prime is 203004303431. The reversal of 203004303413 is 314303400302.

Together with next prime (203004303431) 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., 153870261169 + 49134042244 = 392263^2 + 221662^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203004303413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203004303113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101502151706 + 101502151707.

It is an arithmetic number, because the mean of its divisors is an integer number (101502151707).

Almost surely, 2^203004303413 is an apocalyptic number.

It is an amenable number.

203004303413 is a deficient number, since it is larger than the sum of its proper divisors (1).

203004303413 is an equidigital number, since it uses as much as digits as its factorization.

203004303413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 203004303413 its reverse (314303400302), we get a palindrome (517307703715).

The spelling of 203004303413 in words is "two hundred three billion, four million, three hundred three thousand, four hundred thirteen".