123233301021 has 4 divisors (see below), whose sum is σ = 164311068032. Its totient is φ = 82155534012.

The previous prime is 123233301013. The next prime is 123233301041. The reversal of 123233301021 is 120103332321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 123233301021 - 2³ = 123233301013 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 (123233301001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20538883501 + ... + 20538883506.

It is an arithmetic number, because the mean of its divisors is an integer number (41077767008).

Almost surely, 2^123233301021 is an apocalyptic number.

It is an amenable number.

123233301021 is a deficient number, since it is larger than the sum of its proper divisors (41077767011).

123233301021 is an equidigital number, since it uses as much as digits as its factorization.

123233301021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41077767010.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 123233301021 its reverse (120103332321), we get a palindrome (243336633342).

The spelling of 123233301021 in words is "one hundred twenty-three billion, two hundred thirty-three million, three hundred one thousand, twenty-one".