203413313 has 8 divisors (see below), whose sum is σ = 217393632. Its totient is φ = 189656896.

The previous prime is 203413303. The next prime is 203413319. The reversal of 203413313 is 313314302.

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

It is not a de Polignac number, because 203413313 - 2⁸ = 203413057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203413319) 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, 54095 + ... + 57732.

It is an arithmetic number, because the mean of its divisors is an integer number (27174204).

Almost surely, 2^203413313 is an apocalyptic number.

It is an amenable number.

203413313 is a deficient number, since it is larger than the sum of its proper divisors (13980319).

203413313 is a wasteful number, since it uses less digits than its factorization.

203413313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111951.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 203413313 is about 14262.3039162682. The cubic root of 203413313 is about 588.1116616191. Note that the first 3 decimals are identical.

Adding to 203413313 its reverse (313314302), we get a palindrome (516727615).

The spelling of 203413313 in words is "two hundred three million, four hundred thirteen thousand, three hundred thirteen".