203134323 has 8 divisors (see below), whose sum is σ = 309538048. Its totient is φ = 116076744.

The previous prime is 203134303. The next prime is 203134333. The reversal of 203134323 is 323431302.

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

It is not a de Polignac number, because 203134323 - 2²⁰ = 202085747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 9673063 = 203134323 / (2 + 0 + 3 + 1 + 3 + 4 + 3 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 203134323.

It is not an unprimeable number, because it can be changed into a prime (203134303) 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, 4836511 + ... + 4836552.

It is an arithmetic number, because the mean of its divisors is an integer number (38692256).

Almost surely, 2^203134323 is an apocalyptic number.

203134323 is a deficient number, since it is larger than the sum of its proper divisors (106403725).

203134323 is an equidigital number, since it uses as much as digits as its factorization.

203134323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9673073.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 203134323 is about 14252.5198824629. The cubic root of 203134323 is about 587.8426652257.

Adding to 203134323 its reverse (323431302), we get a palindrome (526565625).

The spelling of 203134323 in words is "two hundred three million, one hundred thirty-four thousand, three hundred twenty-three".