23443012304021 has 4 divisors (see below), whose sum is σ = 23443044151200. Its totient is φ = 23442980456844.

The previous prime is 23443012304011. The next prime is 23443012304053. The reversal of 23443012304021 is 12040321034432.

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 a cyclic number.

It is not a de Polignac number, because 23443012304021 - 2⁶ = 23443012303957 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 (23443012304011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14792651 + ... + 16300568.

It is an arithmetic number, because the mean of its divisors is an integer number (5860761037800).

Almost surely, 2^{23443012304021} is an apocalyptic number.

It is an amenable number.

23443012304021 is a deficient number, since it is larger than the sum of its proper divisors (31847179).

23443012304021 is an equidigital number, since it uses as much as digits as its factorization.

23443012304021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31847178.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 23443012304021 its reverse (12040321034432), we get a palindrome (35483333338453).

The spelling of 23443012304021 in words is "twenty-three trillion, four hundred forty-three billion, twelve million, three hundred four thousand, twenty-one".