23243242021 has 8 divisors (see below), whose sum is σ = 23322380288. Its totient is φ = 23164218000.

The previous prime is 23243242007. The next prime is 23243242049. The reversal of 23243242021 is 12024234232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23243242021 - 2⁷ = 23243241893 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 (23243242081) 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 7 ways as a sum of consecutive naturals, for example, 389356 + ... + 445066.

It is an arithmetic number, because the mean of its divisors is an integer number (2915297536).

Almost surely, 2^23243242021 is an apocalyptic number.

It is an amenable number.

23243242021 is a deficient number, since it is larger than the sum of its proper divisors (79138267).

23243242021 is an equidigital number, since it uses as much as digits as its factorization.

23243242021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57123.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 23243242021 its reverse (12024234232), we get a palindrome (35267476253).

The spelling of 23243242021 in words is "twenty-three billion, two hundred forty-three million, two hundred forty-two thousand, twenty-one".