233121003312 has 80 divisors (see below), whose sum is σ = 614485572192. Its totient is φ = 76135464960.

The previous prime is 233121003301. The next prime is 233121003343. The reversal of 233121003312 is 213300121332.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 597598 + ... + 907394.

Almost surely, 2^233121003312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 233121003312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307242786096).

233121003312 is an abundant number, since it is smaller than the sum of its proper divisors (381364568880).

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

233121003312 is a wasteful number, since it uses less digits than its factorization.

233121003312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310126 (or 310120 counting only the distinct ones).

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

Adding to 233121003312 its reverse (213300121332), we get a palindrome (446421124644).

The spelling of 233121003312 in words is "two hundred thirty-three billion, one hundred twenty-one million, three thousand, three hundred twelve".