233123000221 has 4 divisors (see below), whose sum is σ = 233133328444. Its totient is φ = 233112672000.

The previous prime is 233123000219. The next prime is 233123000239. The reversal of 233123000221 is 122000321332.

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

It can be written as a sum of positive squares in 2 ways, for example, as 191502512100 + 41620488121 = 437610^2 + 204011^2 .

It is a cyclic number.

It is not a de Polignac number, because 233123000221 - 2¹ = 233123000219 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 (233123000291) 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, 5130180 + ... + 5175421.

It is an arithmetic number, because the mean of its divisors is an integer number (58283332111).

Almost surely, 2^233123000221 is an apocalyptic number.

It is an amenable number.

233123000221 is a deficient number, since it is larger than the sum of its proper divisors (10328223).

233123000221 is a wasteful number, since it uses less digits than its factorization.

233123000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10328222.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 233123000221 its reverse (122000321332), we get a palindrome (355123321553).

The spelling of 233123000221 in words is "two hundred thirty-three billion, one hundred twenty-three million, two hundred twenty-one", and thus it is an aban number.