233231223033220 has 48 divisors (see below), whose sum is σ = 495931148451648. Its totient is φ = 92123011598720.

The previous prime is 233231223033191. The next prime is 233231223033223. The reversal of 233231223033220 is 22330322132332.

It is a happy number.

It is a super-2 number, since 2×233231223033220² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (233231223033223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31292491 + ... + 38022130.

It is an arithmetic number, because the mean of its divisors is an integer number (10331898926076).

Almost surely, 2^{233231223033220} is an apocalyptic number.

233231223033220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233231223033220 is an abundant number, since it is smaller than the sum of its proper divisors (262699925418428).

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

233231223033220 is a wasteful number, since it uses less digits than its factorization.

233231223033220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69316740 (or 69316738 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 31.

Adding to 233231223033220 its reverse (22330322132332), we get a palindrome (255561545165552).

The spelling of 233231223033220 in words is "two hundred thirty-three trillion, two hundred thirty-one billion, two hundred twenty-three million, thirty-three thousand, two hundred twenty".