203253123 has 16 divisors (see below), whose sum is σ = 273330720. Its totient is φ = 134344704.

The previous prime is 203253091. The next prime is 203253151. The reversal of 203253123 is 321352302.

It is not a de Polignac number, because 203253123 - 2⁵ = 203253091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 203253123.

It is not an unprimeable number, because it can be changed into a prime (203253163) 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 in 15 ways as a sum of consecutive naturals, for example, 218323 + ... + 219251.

It is an arithmetic number, because the mean of its divisors is an integer number (17083170).

Almost surely, 2^203253123 is an apocalyptic number.

203253123 is a deficient number, since it is larger than the sum of its proper divisors (70077597).

203253123 is a wasteful number, since it uses less digits than its factorization.

203253123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1478.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 203253123 is about 14256.6869573544. The cubic root of 203253123 is about 587.9572398217.

It can be divided in two parts, 2032 and 53123, that added together give a palindrome (55155).

The spelling of 203253123 in words is "two hundred three million, two hundred fifty-three thousand, one hundred twenty-three".