233123132221 has 16 divisors (see below), whose sum is σ = 272131522560. Its totient is φ = 195542152560.

The previous prime is 233123132167. The next prime is 233123132227. The reversal of 233123132221 is 122231321332.

It is a cyclic number.

It is not a de Polignac number, because 233123132221 - 2¹¹ = 233123130173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233123132227) 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, 2644900 + ... + 2731618.

It is an arithmetic number, because the mean of its divisors is an integer number (17008220160).

Almost surely, 2^233123132221 is an apocalyptic number.

It is an amenable number.

233123132221 is a deficient number, since it is larger than the sum of its proper divisors (39008390339).

233123132221 is an equidigital number, since it uses as much as digits as its factorization.

233123132221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94944.

The product of its digits is 2592, while the sum is 25.

Adding to 233123132221 its reverse (122231321332), we get a palindrome (355354453553).

The spelling of 233123132221 in words is "two hundred thirty-three billion, one hundred twenty-three million, one hundred thirty-two thousand, two hundred twenty-one".