233121021330 has 32 divisors (see below), whose sum is σ = 559506097728. Its totient is φ = 62163867200.

The previous prime is 233121021323. The next prime is 233121021347. The reversal of 233121021330 is 33120121332.

233121021330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 233121021297 and 233121021306.

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 15 ways as a sum of consecutive naturals, for example, 1267840 + ... + 1440020.

It is an arithmetic number, because the mean of its divisors is an integer number (17484565554).

Almost surely, 2^233121021330 is an apocalyptic number.

233121021330 is an abundant number, since it is smaller than the sum of its proper divisors (326385076398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

233121021330 is a wasteful number, since it uses less digits than its factorization.

233121021330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217322.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 233121021330 its reverse (33120121332), we get a palindrome (266241142662).

The spelling of 233121021330 in words is "two hundred thirty-three billion, one hundred twenty-one million, twenty-one thousand, three hundred thirty".