203411413 has 8 divisors (see below), whose sum is σ = 205529688. Its totient is φ = 201298944.

The previous prime is 203411399. The next prime is 203411419. The reversal of 203411413 is 314114302.

It can be written as a sum of positive squares in 4 ways, for example, as 17825284 + 185586129 = 4222^2 + 13623^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 203411413 - 2⁵ = 203411381 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 (203411419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113581 + ... + 115357.

It is an arithmetic number, because the mean of its divisors is an integer number (25691211).

Almost surely, 2^203411413 is an apocalyptic number.

It is an amenable number.

203411413 is a deficient number, since it is larger than the sum of its proper divisors (2118275).

203411413 is a wasteful number, since it uses less digits than its factorization.

203411413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 203411413 is about 14262.2373069585. The cubic root of 203411413 is about 588.1098305104.

Adding to 203411413 its reverse (314114302), we get a palindrome (517525715).

The spelling of 203411413 in words is "two hundred three million, four hundred eleven thousand, four hundred thirteen".