233211320 has 32 divisors (see below), whose sum is σ = 552344400. Its totient is φ = 88374528.

The previous prime is 233211311. The next prime is 233211343. The reversal of 233211320 is 23112332.

233211320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×233211320² = 108775039552284800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152669 + ... + 154188.

Almost surely, 2^233211320 is an apocalyptic number.

233211320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233211320 is an abundant number, since it is smaller than the sum of its proper divisors (319133080).

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

233211320 is a wasteful number, since it uses less digits than its factorization.

233211320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306887 (or 306883 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 233211320 is about 15271.2579704489. The cubic root of 233211320 is about 615.5309227608.

Adding to 233211320 its reverse (23112332), we get a palindrome (256323652).

The spelling of 233211320 in words is "two hundred thirty-three million, two hundred eleven thousand, three hundred twenty".