233223311320 has 64 divisors (see below), whose sum is σ = 534058272000. Its totient is φ = 91637397888.

The previous prime is 233223311281. The next prime is 233223311323. The reversal of 233223311320 is 23113322332.

It is a super-2 number, since 2×233223311320² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233223311323) 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, 3075379 + ... + 3150301.

It is an arithmetic number, because the mean of its divisors is an integer number (8344660500).

Almost surely, 2^233223311320 is an apocalyptic number.

233223311320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 233223311320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267029136000).

233223311320 is an abundant number, since it is smaller than the sum of its proper divisors (300834960680).

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

233223311320 is a wasteful number, since it uses less digits than its factorization.

233223311320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76312 (or 76308 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 233223311320 its reverse (23113322332), we get a palindrome (256336633652).

The spelling of 233223311320 in words is "two hundred thirty-three billion, two hundred twenty-three million, three hundred eleven thousand, three hundred twenty".