203230303121 has 8 divisors (see below), whose sum is σ = 215347946184. Its totient is φ = 191130762240.

The previous prime is 203230303091. The next prime is 203230303207. The reversal of 203230303121 is 121303032302.

203230303121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 117536522896 + 85693780225 = 342836^2 + 292735^2 .

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 203230303121 - 2⁶ = 203230303057 is a prime.

It is a super-2 number, since 2×203230303121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203230303093 and 203230303102.

It is not an unprimeable number, because it can be changed into a prime (203230303021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4502420 + ... + 4547333.

It is an arithmetic number, because the mean of its divisors is an integer number (26918493273).

Almost surely, 2^203230303121 is an apocalyptic number.

It is an amenable number.

203230303121 is a deficient number, since it is larger than the sum of its proper divisors (12117643063).

203230303121 is a wasteful number, since it uses less digits than its factorization.

203230303121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9051091.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 203230303121 its reverse (121303032302), we get a palindrome (324533335423).

The spelling of 203230303121 in words is "two hundred three billion, two hundred thirty million, three hundred three thousand, one hundred twenty-one".