23421321110221 has 4 divisors (see below), whose sum is σ = 23459158463200. Its totient is φ = 23383483757244.

The previous prime is 23421321110189. The next prime is 23421321110227. The reversal of 23421321110221 is 12201112312432.

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 23421321110221 - 2⁵ = 23421321110189 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 (23421321110227) 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, 18918675561 + ... + 18918676798.

It is an arithmetic number, because the mean of its divisors is an integer number (5864789615800).

Almost surely, 2^{23421321110221} is an apocalyptic number.

It is an amenable number.

23421321110221 is a deficient number, since it is larger than the sum of its proper divisors (37837352979).

23421321110221 is an equidigital number, since it uses as much as digits as its factorization.

23421321110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37837352978.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 23421321110221 its reverse (12201112312432), we get a palindrome (35622433422653).

The spelling of 23421321110221 in words is "twenty-three trillion, four hundred twenty-one billion, three hundred twenty-one million, one hundred ten thousand, two hundred twenty-one".