203450423 has 16 divisors (see below), whose sum is σ = 234662400. Its totient is φ = 174444480.

The previous prime is 203450417. The next prime is 203450437. The reversal of 203450423 is 324054302.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203450423 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 (203450413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47915 + ... + 51987.

It is an arithmetic number, because the mean of its divisors is an integer number (14666400).

Almost surely, 2^203450423 is an apocalyptic number.

203450423 is a deficient number, since it is larger than the sum of its proper divisors (31211977).

203450423 is a wasteful number, since it uses less digits than its factorization.

203450423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4342.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 203450423 is about 14263.6048388898. The cubic root of 203450423 is about 588.1474237764.

The spelling of 203450423 in words is "two hundred three million, four hundred fifty thousand, four hundred twenty-three".