203043413 has 8 divisors (see below), whose sum is σ = 210725400. Its totient is φ = 195406848.

The previous prime is 203043389. The next prime is 203043419. The reversal of 203043413 is 314340302.

It can be written as a sum of positive squares in 4 ways, for example, as 208849 + 202834564 = 457^2 + 14242^2 .

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 203043413 - 2⁶ = 203043349 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 (203043419) 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, 2108 + ... + 20261.

It is an arithmetic number, because the mean of its divisors is an integer number (26340675).

Almost surely, 2^203043413 is an apocalyptic number.

It is an amenable number.

203043413 is a deficient number, since it is larger than the sum of its proper divisors (7681987).

203043413 is a wasteful number, since it uses less digits than its factorization.

203043413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22711.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 203043413 is about 14249.3302649633. The cubic root of 203043413 is about 587.7549584806.

Adding to 203043413 its reverse (314340302), we get a palindrome (517383715).

The spelling of 203043413 in words is "two hundred three million, forty-three thousand, four hundred thirteen".