233430313211 has 4 divisors (see below), whose sum is σ = 233950203000. Its totient is φ = 232910423424.

The previous prime is 233430313201. The next prime is 233430313213. The reversal of 233430313211 is 112313034332.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233430313211 is a prime.

It is a super-2 number, since 2×233430313211² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233430313213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259944221 + ... + 259945118.

It is an arithmetic number, because the mean of its divisors is an integer number (58487550750).

Almost surely, 2^233430313211 is an apocalyptic number.

233430313211 is a deficient number, since it is larger than the sum of its proper divisors (519889789).

233430313211 is an equidigital number, since it uses as much as digits as its factorization.

233430313211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519889788.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 233430313211 its reverse (112313034332), we get a palindrome (345743347543).

The spelling of 233430313211 in words is "two hundred thirty-three billion, four hundred thirty million, three hundred thirteen thousand, two hundred eleven".