233223303220 has 12 divisors (see below), whose sum is σ = 489768936804. Its totient is φ = 93289321280.

The previous prime is 233223303151. The next prime is 233223303223. The reversal of 233223303220 is 22303322332.

It can be written as a sum of positive squares in 2 ways, for example, as 166101893136 + 67121410084 = 407556^2 + 259078^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233223303223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5830582561 + ... + 5830582600.

It is an arithmetic number, because the mean of its divisors is an integer number (40814078067).

Almost surely, 2^233223303220 is an apocalyptic number.

233223303220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233223303220 is an abundant number, since it is smaller than the sum of its proper divisors (256545633584).

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

233223303220 is a wasteful number, since it uses less digits than its factorization.

233223303220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11661165170 (or 11661165168 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 25.

Adding to 233223303220 its reverse (22303322332), we get a palindrome (255526625552).

The spelling of 233223303220 in words is "two hundred thirty-three billion, two hundred twenty-three million, three hundred three thousand, two hundred twenty".