203230123221 has 8 divisors (see below), whose sum is σ = 278297105824. Its totient is φ = 131824944720.

The previous prime is 203230123219. The next prime is 203230123241. The reversal of 203230123221 is 122321032302.

It is a happy number.

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

It is not a de Polignac number, because 203230123221 - 2¹ = 203230123219 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 (203230123211) 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, 915450895 + ... + 915451116.

It is an arithmetic number, because the mean of its divisors is an integer number (34787138228).

Almost surely, 2^203230123221 is an apocalyptic number.

It is an amenable number.

203230123221 is a deficient number, since it is larger than the sum of its proper divisors (75066982603).

203230123221 is a wasteful number, since it uses less digits than its factorization.

203230123221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830902051.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 203230123221 its reverse (122321032302), we get a palindrome (325551155523).

The spelling of 203230123221 in words is "two hundred three billion, two hundred thirty million, one hundred twenty-three thousand, two hundred twenty-one".