203213423 has 8 divisors (see below), whose sum is σ = 232400160. Its totient is φ = 174065760.

The previous prime is 203213407. The next prime is 203213447. The reversal of 203213423 is 324312302.

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 203213423 - 2⁴ = 203213407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203213395 and 203213404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203213453) 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, 2393 + ... + 20301.

It is an arithmetic number, because the mean of its divisors is an integer number (29050020).

Almost surely, 2^203213423 is an apocalyptic number.

203213423 is a deficient number, since it is larger than the sum of its proper divisors (29186737).

203213423 is a wasteful number, since it uses less digits than its factorization.

203213423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19537.

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

The square root of 203213423 is about 14255.2945602678. The cubic root of 203213423 is about 587.9189568145.

Adding to 203213423 its reverse (324312302), we get a palindrome (527525725).

The spelling of 203213423 in words is "two hundred three million, two hundred thirteen thousand, four hundred twenty-three".