203344421 has 8 divisors (see below), whose sum is σ = 233043840. Its totient is φ = 173807568.

The previous prime is 203344417. The next prime is 203344423. The reversal of 203344421 is 124443302.

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 203344421 - 2² = 203344417 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 (203344423) 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 7 ways as a sum of consecutive naturals, for example, 37946 + ... + 42971.

It is an arithmetic number, because the mean of its divisors is an integer number (29130480).

Almost surely, 2^203344421 is an apocalyptic number.

It is an amenable number.

203344421 is a deficient number, since it is larger than the sum of its proper divisors (29699419).

203344421 is an equidigital number, since it uses as much as digits as its factorization.

203344421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81283.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 203344421 is about 14259.8885339262. Note that the first 3 decimals coincide. The cubic root of 203344421 is about 588.0452602565.

Adding to 203344421 its reverse (124443302), we get a palindrome (327787723).

The spelling of 203344421 in words is "two hundred three million, three hundred forty-four thousand, four hundred twenty-one".