23221240423 has 8 divisors (see below), whose sum is σ = 24883428528. Its totient is φ = 21591967104.

The previous prime is 23221240417. The next prime is 23221240433. The reversal of 23221240423 is 32404212232.

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

It is not a de Polignac number, because 23221240423 - 2⁵ = 23221240391 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 (23221240433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8227236 + ... + 8230057.

It is an arithmetic number, because the mean of its divisors is an integer number (3110428566).

Almost surely, 2^23221240423 is an apocalyptic number.

23221240423 is a deficient number, since it is larger than the sum of its proper divisors (1662188105).

23221240423 is a wasteful number, since it uses less digits than its factorization.

23221240423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16457393.

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

Adding to 23221240423 its reverse (32404212232), we get a palindrome (55625452655).

The spelling of 23221240423 in words is "twenty-three billion, two hundred twenty-one million, two hundred forty thousand, four hundred twenty-three".