203103121121330 has 8 divisors (see below), whose sum is σ = 365585618018412. Its totient is φ = 81241248448528.

The previous prime is 203103121121311. The next prime is 203103121121347. The reversal of 203103121121330 is 33121121301302.

It can be written as a sum of positive squares in 2 ways, for example, as 200366601218281 + 2736519903049 = 14155091^2 + 1654243^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 203103121121296 and 203103121121305.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10155156056057 + ... + 10155156056076.

Almost surely, 2^{203103121121330} is an apocalyptic number.

203103121121330 is a deficient number, since it is larger than the sum of its proper divisors (162482496897082).

203103121121330 is a wasteful number, since it uses less digits than its factorization.

203103121121330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20310312112140.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 203103121121330 its reverse (33121121301302), we get a palindrome (236224242422632).

The spelling of 203103121121330 in words is "two hundred three trillion, one hundred three billion, one hundred twenty-one million, one hundred twenty-one thousand, three hundred thirty".