203040413 has 2 divisors, whose sum is σ = 203040414. Its totient is φ = 203040412.

The previous prime is 203040379. The next prime is 203040419. The reversal of 203040413 is 314040302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115842169 + 87198244 = 10763^2 + 9338^2 .

It is a cyclic number.

It is not a de Polignac number, because 203040413 - 2⁸ = 203040157 is a prime.

It is a super-2 number, since 2×203040413² = 82450818622421138, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 203040391 and 203040400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203040419) 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, 101520206 + 101520207.

It is an arithmetic number, because the mean of its divisors is an integer number (101520207).

Almost surely, 2^203040413 is an apocalyptic number.

It is an amenable number.

203040413 is a deficient number, since it is larger than the sum of its proper divisors (1).

203040413 is an equidigital number, since it uses as much as digits as its factorization.

203040413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 203040413 is about 14249.2249964691. The cubic root of 203040413 is about 587.7520637408.

Adding to 203040413 its reverse (314040302), we get a palindrome (517080715).

The spelling of 203040413 in words is "two hundred three million, forty thousand, four hundred thirteen".