203320121330 has 8 divisors (see below), whose sum is σ = 365976218412. Its totient is φ = 81328048528.

The previous prime is 203320121327. The next prime is 203320121369. The reversal of 203320121330 is 33121023302.

It can be written as a sum of positive squares in 2 ways, for example, as 192397154161 + 10922967169 = 438631^2 + 104513^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10166006057 + ... + 10166006076.

Almost surely, 2^203320121330 is an apocalyptic number.

203320121330 is a deficient number, since it is larger than the sum of its proper divisors (162656097082).

203320121330 is a wasteful number, since it uses less digits than its factorization.

203320121330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20332012140.

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

Adding to 203320121330 its reverse (33121023302), we get a palindrome (236441144632).

The spelling of 203320121330 in words is "two hundred three billion, three hundred twenty million, one hundred twenty-one thousand, three hundred thirty".