233421113231 has 16 divisors (see below), whose sum is σ = 249719998560. Its totient is φ = 217551484800.

The previous prime is 233421113207. The next prime is 233421113251. The reversal of 233421113231 is 132311124332.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233421113231 is a prime.

It is a super-2 number, since 2×233421113231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 233421113231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233421113251) 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 15 ways as a sum of consecutive naturals, for example, 86096 + ... + 688661.

It is an arithmetic number, because the mean of its divisors is an integer number (15607499910).

Almost surely, 2^233421113231 is an apocalyptic number.

233421113231 is a deficient number, since it is larger than the sum of its proper divisors (16298885329).

233421113231 is a wasteful number, since it uses less digits than its factorization.

233421113231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775034.

The product of its digits is 2592, while the sum is 26.

Adding to 233421113231 its reverse (132311124332), we get a palindrome (365732237563).

The spelling of 233421113231 in words is "two hundred thirty-three billion, four hundred twenty-one million, one hundred thirteen thousand, two hundred thirty-one".