233021320231 has 16 divisors (see below), whose sum is σ = 276487813440. Its totient is φ = 192148992000.

The previous prime is 233021320183. The next prime is 233021320261. The reversal of 233021320231 is 132023120332.

It is not a de Polignac number, because 233021320231 - 2²¹ = 233019223079 is a prime.

It is a super-2 number, since 2×233021320231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233021320261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2015770 + ... + 2128231.

It is an arithmetic number, because the mean of its divisors is an integer number (17280488340).

Almost surely, 2^233021320231 is an apocalyptic number.

233021320231 is a deficient number, since it is larger than the sum of its proper divisors (43466493209).

233021320231 is a wasteful number, since it uses less digits than its factorization.

233021320231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4144314.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 233021320231 its reverse (132023120332), we get a palindrome (365044440563).

The spelling of 233021320231 in words is "two hundred thirty-three billion, twenty-one million, three hundred twenty thousand, two hundred thirty-one".